View source for ComplianceDetails/DC

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Allocation of "Accept" and "Cancel" to the A and B buttons, respectively, is always assumed to be the
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1 Controller functions
Use the A button to Accept (perform) an operation and the B button to Cancel (reject) an operation.

Allocation of "Accept" and "Cancel" to the A and B buttons, respectively, is always assumed to be the
default configuration. However, if a user chooses to redefine the uses of these two buttons using a configuration
menu, it is permissible to allow the buttons to be redefined as requested.
{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=5}}



2.1
It is not permissible for a game to stop when an incompatible controller is inserted in the control port.
Under past development standards, applications were not allowed to start or operate when an incompatible
controller was used. This restriction has now been relaxed. If an application does not stop and continued
operation is possible when a nonstandard controller is inserted, continued operation is allowed.
However, if a game allows the use of nonstandard controllers, the application’s instruction manual must
warn that “operation with incompatible controllers is not guaranteed.”
{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=8}}

2.2.1
In games that can be played by only one person, as well as in multi-player games, it must be possible to
start and operate the game from any of the four front-panel ports (A through D) to which a compatible
controller is connected.
{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=9}}

2.2.2
Unless an expansion socket is used (as described in Chapter 12, ”Pause,”) the number of ports from
which games can be started or operated must not exceed the number of users playing a game. (When an
expansion socket is used, it doesn’t matter if the ports being used exceed the number of players. Even if you use a memory card to save a game that is being played by only one or two people, it won’t cause any
problems if an unused expansion socket happens to be plugged in.)
{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=9}}

2.2.3
Even though a compatible controller is not connected to a port when power is turned on, if it is connected
before a game begins, it must be properly recognized and enabled for start and operation. So your
application must test the ports frequently in the Title Loop before starting a game.
{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=10}}

2.2.6
In an application in which single player uses a single controller, play is not resumed.
{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=12}}

3.2
Required
Immediately upon loading an application (before the Title Loop starts), the stereo/monaural output setting
should be changed to match the Boot ROM settings of the Main Unit.
Even if sound output is not listed in Chapter 9, Options, an application internally determines if it is stereo
or monaural, so the settings must be changed to correspond to the Main Unit Boot ROM settings on
the application side.
Currently, the stereo/monaural output settings are saved on the Main Unit, and should not be saved
under any circumstances to the memory card. Refer to Chapter 9.2, Storing Option Settings, for
more details.
{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=15}}


4.1.1
When the disc lid is open, “Soft Reset” must be enabled, except in cases of special processing such as
executing operations to save or load the memory card.
{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=17}}

4.1.2
With a few exceptions, a soft reset must occur when the START Button is pressed while the A + B + X
+Y buttons are all held down together. Exceptions include racing controllers, gun controllers and hardware
keyboards (for which this operation is impossible), and certain controllers for which such operation
is difficult. Note that if you cannot make soft reset possible using the operation described in this standard, you must make it possible using some other kind of operation, as explained under the next
“Required” subheading.{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=17}}

For controllers such as racing controllers, gun controllers and the keyboard (for which the soft reset
operation of pressing the A + B + X + Y buttons and the START button simultaneously is difficult or
impossible), applications must make soft resets possible using the method outlined in Chapter 18, Development
Standards for Peripherals, or through either a software keyboard or another procedure displayed
in a separate menu.
When soft reset is supported using a procedure described in a separate menu, your application is not
required to display that menu at all times if that would adversely affect your game. Nonetheless, the soft
reset option should be clearly displayed on a suitable menu and made selectable for the user.
{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=18}}

Soft Reset must be possible from all controllers (ports) in use.
As explained in Chapter 2, Single User, Single Controller Applications, operation of an application is disabled
for controllers connected to ports that are not being used by the application, so as a matter of
course, soft reset is also disabled for those controllers.
{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=18}}


4.1.4.1
Soft reset from the Title Loop must jump to the Main Unit Boot ROM Menu.{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=19}}

Soft reset from the main game (after the application is started) must jump to the Title Screen.{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=19}}

4.2.1
The Main Unit Boot ROM menu must appear when the Main Unit “OPEN button” is pressed and the
disc lid is opened. Please note the alternative cases described in 4.2.2, Exceptions when the Disc Lid is
Open, 4.2.3, When the Disc Lid is Opened during Saves, and 4.2.4, When File Loading Fails from
the Disc,.
When the disc lid is opened, your application must go to the Main Unit Boot ROM menu within
ten seconds.{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=20}}

4.2.2
For games with data that require the changing of discs, a manual user mode for opening and closing the
disc lid is accommodated, and your application must be designed in such a way that the disc lid can be
opened and closed only from this mode.
A warning must be displayed requesting the user to change back to the original game disc when finished
with this mode. After the original game disc is inserted, a Disc Check must be carried out. This option is
limited to times when it is necessary to change discs for game elements.
Refer to Chapter 17.4, Switching Discs During Game Play, for multi-disc applications.
For reasons other than this (for example, to insert another disc as background music), opening the disc
lid must be prohibited.{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=20}}

4.2.3
When executing saves, do not go to the Main Unit Boot ROM main screen until that save is finished.
(This requirement is imposed to avoid the loss of the file being saved). Go to the main screen as soon as
the save is finished.{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=21}}


5.1.1
As soon as power is turned on, the Sega License Logo display must appear on the screen. In titles developed
using Windows CE for Dreamcast, the Microsoft logo must appear along with the Sega License
Logo (see the following screen shot). To display these two logos simultaneously, enable both “Sega
License Logo” and “Microsoft Logo” on your application disc’s IP.BIN file.{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=24}}

5.2.6
After the Sega License logo is displayed, display any other logo screens. Display each screen for at least
two seconds.{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=27}}

5.2.7
To display the license logo and library logo, observe the following standards:
1. Follow the rules outlined in the contract document regarding the content of logo display.
2. The order of logo display and the possibility of skipping screens is defined in the terms of the
contract document.
3. To display the library logo, refer to Chapter 24, License Acknowledgment when Using Libraries
and Patents
4. When you need to display a license logo that is not regulated in the related contract document, we
recommend you prepare a detailed display of the contents and send it to the Sega Legal Department
for consultation to avoid possible problems of rights infringement.{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=28}}

5.2.8
To display a team logo and series logo, observe the following standards:
1. When creating a team logo or series logo, obtain approval for its use and register the trademark.
2. When using the logo, use only the logo in A. When using the logo, attach detailed specs of the logo
display for the parties involved and send it to the Sega Legal department.
3. Obtain approval from the company in charge of the logo.
4. When displaying the logo, do not use the words “Presents”, “Presented by” or “Produced by”
together with the team or series logo to avoid complications of rights ownership.{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=28}}

5.2.9
When displaying OEM logos other than manufacture and sales permit licensers, these are the standards
to follow:
1. When you want to display an OEM logo, the logo display content is regulated in the development
contract document.
2. If there is no regulation in the contract document, as a principle, any OEM logo display is disallowed.
3. However, even with the conditions of (2.), when absolutely necessary, logos can be displayed by
attaching detailed specs of the logo display for the parties involved and bringing it to the Sega
Legal Department.
The OEM company name is displayed in the main position, with the logo display in the
secondary position.
• Add “In cooperation with”… to the display area of the OEM company name.{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=29}}


6
The Title Screen displays the Title Logo, “PRESS START BUTTON” and a copyright, unless specified
otherwise by contract document or difficulty (such as a movie title) to display the copyright because of
lack of space.
If “PRESS START BUTTON” is displayed in any language other than English, express the idea that
pressing the start button will start the game as simply as possible.{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=32}}

6.1
If transition to the next screen is not initiated by user input, display the Title Logo for about
two seconds.{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=32}}

6.1.1
Advancing to the Main Game or Start/Option screen should occur only when the START button is
pressed at the Title Screen.
If the START button is not pressed, proceed to the next screen of the title loop after a short time has
elapsed, as mentioned in Chapter 3, Sequences before Game Start.{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=32}}

7.1
During the Play Demo sequence, “PRESS START BUTTON,” and/or “DEMO PLAY,” should be displayed
on the screen to clearly distinguish from the main game (after game start).{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=33}}

7.2
Pressing the START button during either the Play Demo or Story Demo should immediately bring up the
Title Screen.
If the START button is not pressed, end the demo after a short time has elapsed, and proceed to the next
screen of the title loop.{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=33}}

8.1
The Start/Option Selection screen exists separately from the Title Screen.
If a “Menu” selection such as Start/Option is needed, it should appear when the START button is
pressed at the Title Screen. Objects other than the Menu can be used and combined as needed.
{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=35}}

8.2
According to the controller connection state, items that are unusable should be displayed in the menu,
but not be selectable.
If a second controller is not present, “vs” mode should be grayed out.
If the phone line is not plugged in, the network selection should be grayed out.{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=35}}

9.1
Considering the many users who play on monaural TVs, the Stereo/Monaural selection should be provided
whenever possible.{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=38}}

9.2
If the option settings are to be backed up according to the above, the Stereo/Monaural setting should not
be saved.
On the Sega Dreamcast, the Stereo/Monaural settings are saved in the Main Unit, considering the case
where the same data is to be used to play in another environment.{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=39}}

9.3
When the user changes the value of the voice output setting on the application option screen, the Main
Unit Boot ROM setting should also be set to the same value before the option screen is exited.
Wait until the user confirms.
As used in the procedures of 3.1, 9.2 and 9.3, the Stereo/Monaural setting refers to Main Console setting,
and other option settings refer to the saved data (if present).{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=39}}

10.1
Important displays such as score and remaining units should not appear within 8 pixels horizontally or
16 pixels vertically from the game screen (for 320x240 pixel displays).{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=41}}

Important displays such as score and remaining units should not appear within 8 pixels horizontally or
32 pixels vertically from the game screen (for 640x480 pixel displays).{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=41}}

10.4
To maintain compatibility with the sync interval in older TVs, applications should avoid suddenly
switching the screen from black to white. (If such switching is necessary, take measures such as inserting
gray between the extremes and lowering the brightness of the white.)
When using a controller, the above measure is not possible on the hardware, and is an exception.
However, as much as possible, don't insert an extremely bright color before a flash or change
colors suddenly.{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=42}}

10.5
Screen display of more than 0XC0 (75% brightness) should not be allowed to persist for a long time
(more than 300 seconds), or cover more than 2/3 of the screen.
Sega Dreamcast image output is set to 800mV, to display bright white briefly, so if 0XC0 (not only white,
but also yellow or other colors) is displayed for a long time on an NTSC/PAL TV, the screen phosphor
could be burned. However, there is no problem displaying 0XFF (100% bright white) briefly and in
small screen regions.
We suggest using values below 0XC0 for large screen regions in applications where screen simulations
are likely to be frozen.
Currently, even the Boot ROM has the background white display corresponding to 0XC0.
The standard brightness of the white color used for the screen flash when using the gun controller is
0x90; for a VGA monitor, it is 0xC0.
The brightness of the white color used for the screen flash is closely related to gun performance and may
be hard on your eyes. You may want to lower the brightness of the flash to make it easier on your eyes,
but so doing shortens the detection range of the peripheral device. The degree of brightness depends on
the type and manufacturer of the monitor on which you view it, but in general, VGA monitors have a
lower degree of brightness than a TV monitor. Taking the above conditions into consideration, the
brightness of the flash is 0x90 for a TV screen, and 0xC0 for a VGA monitor.{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=43}}

11.3
If a VMU device is present, the application must make use of the card to save game data. The minimum
save-game support should be for game preferences and high scores.{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=46}}

12
A pause capability should be provided except when not needed due to the character of the game, and to
allow time for an application to obtain matching service (19.3 Matching Service Functions) when connecting
to a network.{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=47}}

12.1
The START button turns the Pause function on and off.
{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=47}}

When the above condition is enacted to allow Pause from either port A or B, the Pause function is
independent for each port (that is, if the Pause is performed from port A, only port A can perform
the Resume).{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=47}}

12.2
A word such as “PAUSE” should be displayed while paused. This is to distinguish the Pause from a
hang-up from a bug.{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=48}}

The display should so indicate the initiator of the Pause, such as “PLAYER 1 PAUSE” or
“PLAYER 2 PAUSE.”{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=48}}

12.3
If the Pause function causes the screen display to persist, such that white display of more than 75%
brightness would occur for a long time (more than 300 seconds), or cover more than 2/3 of the screen, a
screen saver should be provided and should start automatically if the Pause persists for more than
300 seconds.
Sega Dreamcast image output is set to 800mV, to display bright white temporarily, so if 0XC0 (not only
white, but also yellow or other colors) is displayed for a long time on an NTSC/PAL TV, the screen phosphor
could be burned. However, there is no problem displaying 0XFF (100% bright white) for short
periods and in a small screen region.
It is up to the application whether the screen saver is an ‘After Dark’ type or simply a reduction in screen
brightness. (Refer to the partial sample program in the SDK.)
Provide a screen different from the main game for the Pause Screen, and ensure that it does not include
white display of more than 0XC0 (75% brightness).{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=48}}

12.4
A Pause must not be allowed during display of the Logo screen, Title Screen or Demo screen, and should
not consist of a blank screen.{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=48}}


14.1
In case of displaying library logos (such as True Motion and CRI MPEG Sofdec) during ending/credit
scrolling, it should not be possible to skip forward. Also, follow the rules in the contract document
regarding skipping screens when displaying license logos.
When library logo and/or license logo display is not included in the Ending/Credit scroll display, the
application side can decide whether or not to allow screen skipping.
However, even if license logo display is not included in the Ending/Credit scroll, enable “Soft Reset” during
the Ending/Credit scroll, as mentioned in 4.1.1, Soft Reset Timing.{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=53}}

14.2
After Ending/Credit Scroll finishes, the game should advance to the Title Screen with a timer or by the
action of the Accept or Start button.{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=53}}

15
If a VMU device is present, the application must make use of the card to save game data. The minimum
save-game support should be for game preferences and high scores.{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=55}}

15.1
The save file for a Dreamcast application must always be registered. (Please make sure the “Back up”
section of the Master ROM Release form has been completely filled out.)
Create a file name that is easily recognizable and bears an intuitive resemblance to the name of the game.{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=55}}

15.1.1
Only 1-byte upper-case English letters, numbers, underscore and period may be used. Spaces are not
allowed. (See grayed part of Figure 1, Usable characters for file names and VMS Comments, on the
next page.){{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=56}}

File names must be exactly 12 characters.{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=56}}

When multiple files are saved by one game, the first 9 characters of each file name must be the same (only
the last 3 may differ).
In the Boot ROM file menu, the first 9 characters determine files associated with each game. Consequently,
if these characters are not the same, the files are not recognized as belonging to the same game,
and the batch copy function will not work.{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=56}}

15.1.2
VMU Comments shall consist of up to 16 single-byte ASCII characters (20 to 7D and A0 to DF).
Character 7E (tilde) should not be used as it does not represent a character in VMU.{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=57}}

15.1.3
Boot ROM comments may consist of up to 32 single-byte or 16 double-byte upper-case English characters
(double-byte characters display as 24x24 dots with the Boot ROM, and single-byte characters as
24x12 dots).{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=58}}

The game title (or a shortened form of the title, if necessary) is written as a Boot ROM Comment.
Display of “Game name + game status” is also possible.{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=58}}

15.1.4
When preparing multiple types of data to sort in the same game and changing the sorting order of save
data in the same game, use sort data such as “Same game sort data + 01, 02" so as not to confuse the
sorting order with another game.{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=58}}

15.1.5
Each application should have its own unique icon.
The unique icon allows each application’s save files to be recognized in the Boot ROM File
Control Menu.{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=59}}

15.1.6
When preparing Visual Comments, observe the rules outlined in “23. Ethics Considerations” to avoid
improper ethics in the comments.{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=59}}

15.1.7
For files where the size will grow over time, allocate the maximum number of blocks at the start. For
example, if level one data takes two blocks to store the game progress, but level two takes four blocks,
then you should allocate four blocks for all level data. In this case, when the data to be saved is smaller
than the number of blocks allocated, do not save filler data in the empty space.{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=60}}

15.2.1.1
Regardless of whether the port (controller) is being used (compatible), or not used (compatible), make
the memory card inserted in either expansion socket selectable.{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=63}}

When allowing the user to select the port and expansion socket for a memory card, the user’s selection
(for example, Port A Expansion Socket 2) should be clearly indicated.{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=63}}

Hot swapping (inserting and removing with power on) of memory cards must be supported (except during
actual save operations).
However, access to Visual Memory cannot be done when using the gun controller. For that reason, this
rule does not apply, but include it anyway so as not to confuse the user.{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=63}}

15.2.2
Regardless of whether a port (controller) is used (compatible), or not used (compatible), make the memory
card inserted in either expansion socket selectable.{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=66}}

When allowing the user to select the port and expansion socket for a memory card, the user’s selection
(for example., Port A Expansion Socket 2) should be clearly indicated.
{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=66}}

If a memory card is removed during the game, play must be paused and a message displayed asking that
the memory card be replaced at the time of saving. If a memory card having the same save file (identical
time stamp and checksum) as that removed is reinserted, the game resumes.{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=66}}

15.2.3
Except for during actual saves, memory card hot plugs (removing and inserting a memory card with the
power ON) should be supported.
However, access to Visual Memory is not possible when using the gun controller. For that reason, this
rule does not apply, but include it anyway so as not to confuse the user.{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=66}}

15.3
Initialization of memory cards should not be handled at the application side.
Currently, all visual memories are shipped in the fully initialized state. If reinitialization is needed, it
should be done from the File Control Menu of the Boot ROM.{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=67}}

15.4
Except in the case of autosaving, a caution message such as “Saving, do not turn Power off” should be
displayed on the TV screen while a save is in progress.
It can be assumed that data may be lost if power is turned off or a reset performed while saving, so the
caution message is important.
Also, even when using auto save, display a message on the TV screen such as “Executing save. Do not
turn off the power” as a warning when save time lasts for more than one second.{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=67}}

Soft reset capability must be disabled while a save is executing.{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=67}}

When a save operation fails to complete correctly, a caution message such as “Save could not complete
correctly” should be displayed.{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=67}}

Except when using auto save, display a warning such as “A file with the same name already exists. OK to
overwrite? (YES/NO)” to make overwrite selectable for the user when the user selects save to overwrite a
file with the same name.{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=67}}


Before overwriting a VMU Executable Game file (A game that is designed to run on an undocked VMU)
in a Sega Dreamcast application, a caution message such as “A VMU Game is installed. Okay to overwrite?
(YES/NO)” and allow the user to make the choice.
No particular message display is needed during 15.2.2, Autosave or when 15.2.3, High scores, etc.
are saved.{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=68}}

15.5
When no memory card is installed, indicate the required space (number of blocks) and display a warning
message such as “A memory card with at least xx blocks of space is required for saving. Cancel save?
(YES/NO)”.{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=69}}

When there is not enough free space (blocks) on an inserted memory card, indicate the lack of empty
space (number of blocks) and display a warning message such as “There are not enough free memory
blocks. XX empty blocks are required for saving. Cancel save? (YES/NO)”.
Check all installed memory cards to determine if any memory card has enough space (blocks).{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=69}}

After displaying one of the warning messages “Empty space not sufficient,” “Memory card not
inserted,” or “Memory card not present in the assigned location,” make it possible to continue to game
(even though saving is not possible).{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=69}}

For the times when one of the above-written messages “Empty space not sufficient” or “Memory card
not inserted” or when auto saving with 15.2.2 or 15.2.3 are displayed, a warning message such as “A
memory card with at least xx blocks of space is required for saving. The game can continue, but saving
will not be possible. Continue game? (YES/NO)" should also be displayed.
Also, after displaying the warning message, if a memory card is inserted, auto save (warning screen
sequence) should be restarted.
When a warning message is displayed once, it is not necessary to display the message again unless power
to the main unit is turned off, except in cases when the memory card is inserted as mentioned above.{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=69}}

If the save location of high scores and configuration data is assigned to Port A extension socket 1 according
to 15.2.3, the port and expansion socket should be indicated in the caution message, such as “A
memory card is not inserted in Port A Extension Socket 1. Please insert a memory card at this location to
save High Score.”{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=69}}

15.6
When an application has a memory management screen, the commands “Delete all files” and “Initialize”
cannot be displayed.
By not providing a command to erase all files, the problem of the user accidentally using it during memory
control is avoided.{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=70}}

15.7
When loading a save file, either display a message such as “Loading...” or indicate to the user in some
other way that the save file is loading.{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=70}}

The integrity of a loaded file must be checked, and if damaged, a caution message such as “the file did
not load correctly” should be displayed.
Display can be done before loading.{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=70}}

In the case where a file does not load correctly, it should not be immediately erased (the damaged file may
be necessary later for customer service purposes).{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=70}}

15.8
The application should not copy files in which the copy-protection attribute is set. (However, applications
may create such files.){{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=73}}

15.10.1
(While saving) When returning to normal processing after starting a save, an on-screen indicator (such as
a progress bar at the bottom) must be provided to show the user that a save is in progress.
Soft reset and CD door open conditions should be indicated in a manner that is compatible with the normal
save indication.{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=74}}

15.11
When reading Visual Memory single application files to the memory card, if there isn’t a block of empty
space, inform the user and abort the write.{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=75}}

16.1
When loading a file from a disc, display a message such as “Loading...” on the screen when reading takes
longer than 10 seconds, or otherwise indicate to the user that the delay is not due to a hangup from
a bug.{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=77}}

17.2
Other than the exceptions in 17.2.1, booting should comply with the conditions of Chapter 3, Sequences
Before Game Start.{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=80}}

17.3
Except as stated in section 17.3.1, a soft reset after starting a game must result in a jump to the Title
Screen of the disc currently inserted in the Main Unit (for instance, a reset with Disc 3 installed results in
display of the Disc 3 Title Screen).
As described in Chapter 4.1.4.2, Omnibus System Case, executing a soft reset from the Title Loop of any
disc brings up the Main Unit Boot ROM Menu (the Multi-Player screen in Saturn).{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=80}}

17.3.1
At the disc switching screen, doing a soft reset when the disc lid is open moves the user to the Main Unit
Boot ROM screen.
Setting the soft reset jump destination to the Main Unit Boot ROM Menu allows the user to check the
title and saved files on the menu if he inserts the wrong disc.
When a soft reset is done before the disc lid is opened on the disc switching screen, jump to the “Disc
title screen”.{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=80}}

17.4
When switching discs, display a message such as, “Press the OPEN button to open the disc lid and
change the disc. After replacing Disc X with Disc Y, close the disc lid.”{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=82}}

After switching discs, always execute the Disc Check routine in the Boot ROM.{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=82}}

When the result of the Boot ROM disc check is NG, display a warning message such as “This is not disc
X. Press the OPEN button and insert the correct disc. After disc X has been inserted, close the lid” and
prompt disc exchange again.{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=82}}

When switching discs, if the wrong disc is inserted, a message such as the following should appear: “This
is not Disc X for [Application Name]. Press the OPEN button to open the disc lid and replace the disc.
After inserting Disc X, close the disc lid.”{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=82}}

At the start of a disc exchange sequence, the caution screens must be loaded into memory, so that after
the user opens the tray and replaces the disc, even if the new disc is unreadable, the caution screens can
be displayed correctly.
Because the Main Unit Boot ROM Menu (Dreamcast’s Multi-Player screen) is not executed when switching
discs, if the correct disc does not load, the caution screens will not be available unless they have been
stored in memory beforehand.{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=83}}

17.5
When a save file is loaded for a disc other than the one currently inserted, a caution message must be displayed,
such as “Press the OPEN button to open the disc lid and replace the Disc. After inserting Disc X,
close the disc lid.”{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=85}}

After switching discs, always execute the Disc Check routine in the Boot ROM.{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=85}}

When switching discs, if the wrong disc is inserted, a message such as the following should appear: “This
is not Disc X for [Application Name]. Press the OPEN button to open the disc lid and replace the disc.
After inserting Disc X, close the disc lid.”{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=85}}

At the start of a disc exchange sequence, the caution screens must be loaded into memory, so that after
the user opens the tray and replaces the disc, even if the new disc is unreadable, the caution screens can
be displayed correctly.{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=85}}

18.1
Include an option to toggle the setting ON/OFF for operation of the vibration peripheral, hereafter
referred to as the Jump Pack.
This setting should be made selectable.{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=87}}

Stop vibration with the Jump Pack during pause or when transferring to the Main Unit Boot ROM.
In the rules up to now, whether or not to stop vibration of the Jump Pack “during transfer to the Main
Unit Boot ROM” was not specially regulated, but from this version, stopping the vibration on the application
side is regulated.{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=87}}

When saving to the memory card, stop vibration of Jump Pack.
There is a very slight chance that vibration may cause a momentary power failure in the connector terminal,
so stop vibration to avoid damaging the connection.{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=88}}

18.1.1
• Sega Dreamcast currently uses four control ports, however, should additional ports become available
check the current to make sure that it is safe to use the fifth Jump Pack. (Up to four Jum Packs can be
plugged into the front of the console, one in each port, without any need to check the current.)
• Allow vibration function for each controller, starting with port A, and continuing until the maximum
current draw has been reached.
• Disable vibration support for any remaining ports.{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=88}}

18.2
When the hardware keyboard is supported in an application, the software keyboard (or character input
screen) should be displayed as an option and the user should be able to input by the software keyboard
when the hardware keyboard is not connected.
A software keyboard is enabled when a hardware keyboard is supported by the application.{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=89}}

During hardware keyboard input, allow the user to distinguish which input mode is currently being used.
When displaying the software keyboard screen and input palette screen, the user should know which
input is currently possible.{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=89}}

18.2.2
Use the special keys on the hardware keyboard, S1 and S2, as the left and right triggers, respectively.{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=90}}

Follow the key input rules below for inputting the following items using operation of the software and
hardware keyboards.
It is not necessary to allocate all the functions defined below.{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=90}}


18.3.1
Use the A and C buttons as “Accept” buttons (perform operation), and the B button as the “Cancel”
button (reject operation).
Allocation of “Accept” and “Cancel” to the respective A and B buttons is assumed, but that doesn't not
mean the B button must be removed from key configuration when the accept key is defined by pressing
the button to allocate keys in key configuration.{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=95}}

18.3.2
When the START button is pressed while the A button + B button + X button + Y button are all held
down, “Soft Reset” must be put into effect.{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=95}}

18.4
Use the A button as the “Accept” button (perform operation) and the B button as the “Cancel” button
(reject operation).
Allocation of “Accept” and “Cancel” to the respective A and B buttons is assumed, but that doesn't not
mean the B button must be removed from key configuration when the accept key is defined by pressing
the button to allocate keys in key configuration.{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=96}}

For the button positions on the racing controller, use the R, L analog buttons as follows: R = accelerator
and L = brake.{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=96}}

18.4.2
When the START button is pressed while the A button + B button + X button + Y button are all held
down, “Soft Reset” must be put into effect.{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=96}}

18.5.1
Use the trigger (A button) as the “Accept” button (perform operation), and the B button as the “Cancel”
button (reject operation).
Allocation of “Accept” and “Cancel” to the respective A and B buttons is assumed, but that doesn't not
mean the B button must be removed from key configuration when the accept key is defined by pressing
the button to allocate keys in key configuration.{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=97}}

18.5.2
When the START button is pressed while the trigger (A button) + B button are held down, “Soft Reset”
must be put into effect.{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=97}}

18.5.3
Prepare the calibration mode to adjust the aim of the gun controller in the application.{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=97}}

18.5.4
Depending on the TV or monitor manufacturer and the type of monitor, the entire screen may not be displayed
at the edges.
For this reason, the margins on all sides on the screen should be at least 16 pixels (for a 640x480 pixel
screen) or 8 pixels (for a 320x240 pixel screen) within which the user cannot aim.{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=98}}

18.5.5
For games that support a gun controller for use in the U.S., display a warning that contains content such
as the following.
“This is not a gun controller (use the American product name) sold for use in the United States. Please
use a commercially approved gun controller.”
Also, don’t allow the application to start up when target site data is read for the gun peripheral at application
start-up and a gun controller not designed for use in the U.S. is connected.{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=99}}

Also, when a gun controller with a territory code (see table below) for places other than the United States
is connected during application operation, the gun mode should not be able to be used.
In the United States, the federal government has declared that there are limitations on the colors of toys
that resemble guns.
This measure is effected to prevent the importation of real guns alongside the toys from other sales
regions by gray importers.{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=99}}

18.6
Use Trigger (A button) as the “Accept” button (perform operation) and the B button as the “Cancel”
button (reject operation).
Allocation of “Accept” and “Cancel” to the respective A and B buttons is assumed, but that doesn't not
mean the B button must be removed from key configuration when the accept key is defined by pressing
the button to allocate keys in key configuration.{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=100}}

18.6.2
When the START button is pressed while the A button + B button + X button + Y button are all held
down, “Soft Reset” must be put into effect.{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=100}}

19.1
If there is no user input for a reasonable period (about two minutes for fighting games, and the maximum
time determined by the user’s web browser of about 15 minutes), the phone line should disconnect,
or an optional setting should be provided to allow the user to select time-out disconnect.
The regulation concerning disconnection when there is no input over a period of time is not followed
when downloading from the web browser.{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=101}}

When a telephone line connection fails or when the phone is disconnected, display a warning message.
Also, as much as possible, clearly state the reason for the failure or disconnection.{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=101}}

When connecting to a network applications like a Web Browser, Mailer, or Chat, confirm the setting data
for connecting to an IP address in Main Unit memory and connect based on that setting.{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=102}}

When there is a function to set the IP Address within an application (currently only permission for settings
by Dreamcast browser is given), Main Unit memory settings should be adjusted to application settings
that are changed.{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=102}}

19.3
When downloading files (that can be saved on the memory card), download and save according to the
information of the definition file together with the save file.
Currently, downloadable files on the SEGA Dreamcast Gaming Network (working title) site mention the
file name and file size in the definition file if it is the same as the execution file during flagging and saving.
Downloading according to definition files (only if there are definition files) makes downloading of regular
PC files not possible. When following regularly issued definition files, Visual Memory Single Application
files are saved as single application files with the final three spaces in the 12-space file name "_vm".{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=102}}

When downloading files, check the free space beforehand, and if there is not enough space, display a caution
message before proceeding with the download, to avoid wasting the users’ download time.{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=102}}

19.4
The Pause function should be disabled whenever connecting to the matching service on a network. (This
is to not disturb the fighting opponent with a Pause. However, soft reset should be possible.){{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=103}}

20.1
In the single-density area of the Dreamcast-specific disc, DA (except for non-sound) should be input
as voice data. DA sound should be made to run even if the specific-disc is put in a non-Dreamcast
CD player.{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=105}}

20.2
For security reasons, the Sega Dreamcast program execution code cannot be written to any area other
than the Sega Dreamcast-specific disc high-density area. Sega Dreamcast program execution code should
not be written to Sega Dreamcast-specific disc single-density area, save data, or Visual Memory special
games.{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=106}}

24

When using a software library provided by another company, and when using a patent that is owned by
another company, depending on the terms of the licensing contract, that company's logo and trade name
must be displayed at the specified location.
For more details, see the following table and its accompanying text.{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=115}}


25.1
Use the A button for “Accept” (perform operation) and the B button for “Cancel” (reject operation).{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=121}}

25.2
Displaying Copyrights:
Observe the rules outlined in Section 6.2, Copyright Display and Chapter 23, Trademark/Copyright
Infringement, when creating copyright displays.{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=122}}

Display the copyright on the title screen.{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=122}}

25.3
Pressing the A and B buttons together from the Title Display/Loop (27.2) starts the main game
(game start).{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=122}}

“Press A+B” should be displayed on the Title Screen.{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=122}}

25.4
An executable file should not rewrite its own Visual Comment.
Even the smallest Visual Comment requires almost 5 blocks, so having the executable file rewrite even a
single block of Visual Memory would probably cause an unacceptably long delay and significant increase
in power consumption, and the rewrite process could not be guaranteed to finish normally.{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=122}}

25.5
When a low-voltage interrupt occurs, the application should finish storing any data and other processes,
and then immediately display a caution message such as “Please replace the batteries,” and disable any
further input from the mode buttons or other keys.{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=123}}

25.6
The last three characters of a 12-character single-application file name should be '_VM'.{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=123}}


26
A very small number of individuals may experience seizures when exposed to certain light patterns or
flashing lights. Exposure to certain patterns or backgrounds on a television screen or while playing
videogames could induce a seizure in such individuals. Certain conditions may induce undetected seizure
symptoms even in persons who have no history of prior seizures or epilepsy.
Because of this possibility, an appropriate seizure warning should be included on videogame packaging.
The following guidelines have been provided by NHK (Japan Broadcasting Co.), and should be used as a
guideline for precautionary measures:
• Prepare an option that can toggle light ON/OFF when flashing lights appear.
• Display a warning message like the one below at the beginning of a game.
These guidelines are examined in more detail in the next section, “NHK (Japan Broadcasting Co.) and
Japan Civil Broadcasting Union Guidelines."{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=125}}

27
Software designed for operation on European systems should be compatible with a 21-pin RGB cable
(15kHz RGB output mode).
One potential problem is that in France, many television sets use 15kHz RGB skate cables, while not
many are equipped with PAL video input jacks.
For this reason, unless 15kHz RGB is consciously supported via software, it may not be possible to use
the Sega Dreamcast system in many households in France.{{fileref|SegaDreamcastSoftwareCreationStandards US.pdf|page=127}}



{{ComplianceDetails|1}}

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