Difference between revisions of "Sega Mega-CD"
From Sega Retro
GerbilSoft (talk | contribs) (→Audio) |
(→Audio) |
||
Line 154: | Line 154: | ||
** 44.1 kHz sampling rate | ** 44.1 kHz sampling rate | ||
* Ricoh [[RF5C164]] PCM chip provides 8 sound channels: | * Ricoh [[RF5C164]] PCM chip provides 8 sound channels: | ||
− | ** Sound format: | + | ** Sound format: Mono PCM (converted to stereo by doubling the input on both channels and adjusting the volume individually for each) |
** Maximum sample rate: 32 kHz | ** Maximum sample rate: 32 kHz | ||
Revision as of 19:26, 27 August 2010
The Sega Mega CD (Japanese: メガCD, in North America Sega CD because the "Mega" branding was not used) is a hardware add-on for the Sega Mega Drive / Genesis that was released in Europe, Australia, Japan and North America. The device allows the user to play proprietary game CDs, audio CDs and CD+G discs.
The development of the Mega CD was top secret; game programmers didn't know exactly what they were designing for until the Mega CD was finally revealed at the Tokyo Toy Show in Japan. In Japan the Mega CD was aimed to compete against the PC Engine, which had a separate CD-ROM drive. (It was not meant to compete with the Super Famicom a.ka. Super Nintendo Entertainment System.)
The original Mega CD model was a CD tray unit that sat under the console. The cheaper Model 2 had a smaller, top loading drive that is attached beside the Mega Drive.
Contents
Markets
Japan
The Sega Mega CD was released first in Japan on December 1st 1991. Its retail price was about ¥49,800. Initially, it was a great success because of the inherent advantages of CDs (high storage capability and the low cost of media). The fact that it had a nice RPG catalog also helped.
The system sold 100,000 units during the first year of release in Japan. However, cost issues prevented more units from being sold.
United States
Sega of Japan did not speak to Sega of America about their Mega CD plans for that market until a few months after the Tokyo Toy Show in Japan. The Sega CD was announced at the Chicago CES on November 1992.
In the end, the Sega CD failed to convince American gamers, mostly due to the cost of the console. There just was not enough value for the price. Moreover, the game experience was little improved.
Sound was likely to be better if it included some CD audio tracks, but on the average, conventional games looked the same. Sega wanted to showcase the power of the Sega CD, and so focused on the "FMV" games rather than importing "extended" games that only expanded ordinary games by taking advantage of the extra storage space of the CD media. Sega insisted on licensing and producing primarily "full motion video" games similar to earlier Laserdisc games, that were universally panned by game reviewers. The single speed CD drive added load times to all games, and the 64-color graphics and underpowered processor (for video rendering) made these full-motion games look terrible.
Europe
In Europe the Mega CD was highly overpriced. It was released in April 1993 in the United Kingdom for £270. Its userbase was small as only 4% of European Mega Drive owners bought a Mega CD. Unlike the Mega Drive, which was a very successful console in Europe, only 60,000 of the 70,000 Mega CDs shipped to Europe were sold by August 1993.
Some European countries (Spain for instance), wouldn't get the original Mega CD at all, but instead would get the upgraded Mega CD 2, which also slowed sales.
Australia
The Australian release for the Mega CD was April 19, 1993.
Models
The following models were released:
- Sega Mega CD I (Sega CD I in North America)
- Sega Mega CD II (Sega CD II in North America). Redesigned to accommodate the Mega Drive/Genesis II and reduce manufacturing costs.
- JVC Wondermega (X'eye in North American release, never released in Europe), this was a all-in one Genesis /Sega CD unit.
- Sega Multimega (called Sega CDX in North America). A portable CD player that plays both Mega Drive and Mega CD games. It's identical internally to the Mega Drive model II.
- Pioneer LaserActive Sega CD module, an add-on device that the user could add to a Pioneer Laseractive Laserdisc player.
Technical Specifications
CPU
Main CPU: Motorola 68000 16 bit processor running at 12.5 MHz
(Same as the Mega Drive/Genesis. Acts as a coprocessor along with the Genesis CPU. One must note that the Genesis clock speed is slower (7.67 MHz))
Graphics
- Graphics Processor: Custom ASIC
- Number of simultaneous colours on screen: 64 (Using programming tricks, this limit is increased to 128 colours via raster effects)
- Colours available in Cinepak and TruVideo modes: 128 to 256 colours
- Video size from 1/4 to full screen
- Advanced compression scheme
- Software-based upgrade
RAM
- Main RAM: 6 Mbit
- PCM samples: 512 Kbit
- CD-ROM data cache: 128 Kbit
- 64 Kbit Internal Backup RAM
- 1 MBit Memory Card CD BackUp RAM Cart
The Mega CD also features sprite enhancement effects such as scaling and rotation, similar to that of the Super Famicom/SNES Mode 7.
Storage
- 500 MB CD-ROM discs (equivalent to 62 min of audio data)
- Access time: 800 ms
- 1/4 screen B/W footage video: 1.5 to 4 hours
- 1/4 screen color footage: 45 minutes
- CD-ROM drive transfer rate: 150 Kbytes/s (1x)
(Above specs prior to compression)
BIOS
- Size: 1 Mb
- Used for games, CD player, CD+G viewing, karaoke (limited to Japanese systems) and regional lockout
BIOS Version | Machine | Download | CRC |
---|---|---|---|
0.98 | Pioneer LaserActive | 0.98 (NA Version) (info) ("Us lsr 930329.zip" does not exist) | 8c3e3945 |
0.98 (Asian Version) (info) ("Jp lsr 930329.zip" does not exist) | 9f5771d2 | ||
1.00 | Original Mega CD, Victor WonderMega 1 (Asia), Sega WonderMega (Asia) | 1.00p (Asian NTSC Bios) (info) ("Jp mcd1 911217.zip" does not exist) | 9d2da8f2 |
1.00s (Asian PAL Bios) (info) ("Jp mcd1 911228.zip" does not exist) | 550f30bb | ||
1.00w (Sega WonderMega Bios) (info) ("Jp wmg 920206.zip" does not exist) | d21fe71d | ||
1.00 (European PAL Bios) (info) ("Eu mcd1 921027.zip" does not exist) | 529ac15a | ||
1.04 | Pioneer LaserActive | 1.04 (NA Version) (info) ("Us mld 930922.zip" does not exist) | 2ed602d7 |
1.10 | Original Sega CD | 1.10 (North American) (info) ("Us scd1 921011.zip" does not exist) | c6d10268 |
2.00 | Sega/Mega CD 2 Victor WonderMega 2 (Asia) JVC X'eye (North America) |
2.00 (1st NA Version) (info) ("Us scd2 930314.zip" does not exist) | 8af65f58 |
2.00w (2nd NA Version) (info) ("Us scd2 930601.zip" does not exist) | 9f6f6276 | ||
2.00c (Asian Version) (info) ("Jp mcd2 921222.zip" does not exist) | dd6cc972 | ||
2.00 (1st European Version) (info) ("Eu mcd2 930330.zip" does not exist) | 0507b590 | ||
2.00w (2nd European Version) (info) ("Eu mcd2 930601.zip" does not exist) | 4d5cb8da | ||
2.00x (X'eye) (info) ("Us xeye 931227.zip" does not exist) | 290f8e33 | ||
2.00 (Wondermega) (info) ("Wondermega 2.00 Bios.zip" does not exist) | N/A | ||
2.11 | Sega/Mega CD 2, Aiwa CSD GM1 (Japan) | 2.11w (NA Version) (info) ("Us scd2 930621.zip" does not exist) | 2e49d72c |
2.21 | Sega Multimega (Europe & Japan), CDX (North America), Linguaphone Education Gear (Japan) | 2.21x (MultiMega) (info) ("Eu mmg 930916.zip" does not exist) | aacb851e |
2.21x (CDX) (info) ("Us cdx 930907.zip" does not exist) | d48c44b5 |
Audio
The Mega CD adds 10 sound channels to the 10 provided by the Mega Drive's sound chips.
- CD Digital Audio
- 2-channel stereo
- 44.1 kHz sampling rate
- Ricoh RF5C164 PCM chip provides 8 sound channels:
- Sound format: Mono PCM (converted to stereo by doubling the input on both channels and adjusting the volume individually for each)
- Maximum sample rate: 32 kHz
Other specifications:
- 16-bit DAC
- 8x internal over-sampling digital filter
- Frequency Range: 20 Hz - 20 KHz
- Signal-to-Noise Ratio: > 90 dB @ 1K
- Channel Separation: > 90 dB
- Input: Mixer cable for Genesis Model 1 compatibility.
- Output: Stereo RCA connectors.
Other
Dimensions: 301mm x 212.5 x 112.5
Weight: 1.4 kg (3.1 lbs)
Games
The five games marked with an asterisk(*) were later released in enhanced form, requiring both the Mega CD and 32X to be played, and taking advantage of the latter's improved graphics (see Sega Mega CD 32X).
- 3 Ninjas Kick Back (1994)
- A/X-101 (1994)
- The Adventures of Batman & Robin (1995)
- The Adventures of Willy Beamish (1993)
- After Armageddon Gaiden (1994)
- After Burner III (1992)
- Aisle Lord (1992)
- Alshark (1993)
- Android Assault: The Revenge of Bari-Arm (1994)
- Anetto Futatabi (1993)
- The Animals (1994)
- Arcus 1-2-3 (1993)
- Arslan Senki (1993)
- Bakuden: The Unbalanced Zone (1994)
- Batman Returns (1993)
- Battle Frenzy (1995)
- Battlecorps (1993)
- BC Racers (1995)
- Bill Walsh College Football (1993)
- Black Hole Assault (1992)
- Bouncers (1995)
- Bram Stoker's Dracula (1993)
- Brutal: Paws of Fury (1993)
- Bug Blasters: The Exterminators (2000)
- Burai Pandora's Box (1992)
- Burning Fists (2006)
- Cadillacs and Dinosaurs: The Second Cataclysm (1994)
- Capcom no Quiz: Tonosama no Yabou (1992)
- Captain Tsubasa (1994)
- Chuck Rock II: Son of Chuck (1992)
- Chuck Rock (1992)
- Citizen X (2004)
- Cliffhanger (1993)
- Cobra Command (1992)
- Colors of Modern Rock (1993)
- Compton's Interactive Encyclopedia (1994)
- Corpse Killer (1994)*
- Cosmic Fantasy Stories (1992)
- Crime Patrol (1994)
- Cyborg 009 (1993)
- Daihoushinden (1994)
- Dark Seed (1993)
- Dark Wizard (1993)
- Death Bringer: The Knight of Darkness (1992)
- Demolition Man (1995)
- Detonator Organ (1992)
- Devastator (1993)
- Double Switch (1995)
- Dracula Unleashed (1993)
- Dragon's Lair (1994)
- Dune (1993)
- Dungeon Explorer (1994)
- Dungeon Master II: The Legend of Skullkeep (1994)
- Dynamic Country Club (1993)
- Earnest Evans (1991)
- Earthworm Jim: Special Edition (1995)
- Ecco the Dolphin (1993)
- Ecco: The Tides of Time (1994)
- Egawa Suguro no Super League (1993)
- ESPN Baseball Tonight (1994)
- ESPN National Hockey Night (1994)
- ESPN NBA HangTime '95 (1994)
- ESPN Sunday Night NFL (1994)
- Eternal Champions: Challenge from the Dark Side (1994)
- Eye of the Beholder (1994)
- F-1 Circus CD (1994)
- Fahrenheit (1995)*
- Fatal Fury Special (1995)
- Fhey Area (1992)
- FIFA International Soccer (1994)
- Final Fight CD (1993)
- Flashback: The Quest for Identity (1993)
- Flink (1994)
- Formula One World Championship: Beyond the Limit (1994)
- Frog Feast (2005)
- Funky Horror Band (1991)
- Gambler Jikko Chuushinha 2 (1992)
- Game no Kanzume Vol. 1 (1994)
- Game no Kanzume Vol. 2 (1994)
- Genei Toshi: Illusion City (1993)
- Genghis Khan II: Clan of the Gray Wolf (1993)
- Ground Zero: Texas (1993)
- Heart of the Alien (1994)
- Heavy Nova Holocronet (1991)
- Heimdall (1994)
- Hook (1992)
- Hot Hits (1992)
- INXS: Make My Video (1992)
- Iron Helix (1994)
- Ishii Hisaichi no Daisekai (1994)
- Jaguar XJ220 (1993)
- Jango World Cup (1993)
- Jeopardy! (1994)
- Joe Montana's NFL Football (1993)
- Jurassic Park (1993)
- Keio Flying Squadron (1993)
- Kids on Site (1994)
- Kris Kross: Make My Video (1992)
- The Lawnmower Man (1994)
- Lethal Enforcers II: Gunfighters (1994)
- Lethal Enforcers (1993)
- Links: The Challenge of Golf (1995
- Loadstar: The Legend of Tully Bodine (1994)
- Lords of Thunder (1995)
- Lunar: Eternal Blue (1994)
- Lunar: The Silver Star (1992)
- Mad Dog II: The Lost Gold (1994)
- Mad Dog McCree (1993)
- Mahou no Shoujo: Silky Lip (1992)
- Make My Video: C&C Music Factory (1992)
- Mansion of Hidden Souls (1993)
- Marko's Magic Football (2003)
- Marky Mark: Make My Video (1992)
- Mary Shelley's Frankenstein (1993)
- Masked Rider (1994)
- Mega Schwarzschild (1993)
- MegaRace (1994)
- Mickey Mania: The Timeless Adventures of Mickey Mouse (1994)
- Microcosm (1994)
- Midnight Raiders (1994)
- Might and Magic III: Isles of Terra (1993)
- Mighty Mighty Missile (2005)
- Mighty Morphin Power Rangers (1994)
- Mortal Kombat (1994)
- My Paint: The Animated Paint Program (1993)
- NBA Jam (1993)
- NFL Football Trivia Challenge (1994)
- NFL's Greatest: San Francisco Vs. Dallas 1978-1993 (1993)
- NHL '94 (1993)
- Night Striker (1993)
- Night Trap (1992)*
- The Ninja Warriors (1993)
- Nostalgia 1907 (1993)
- Novastorm (1993)
- Panic! Data East (1993)
- Penn & Teller's Smoke and Mirrors (unreleased)
- Pitfall: The Mayan Adventure (1994)
- Popful Mail: Magical Fantasy Adventure (1994)
- Power Monger (1994)
- Prince of Persia (1993)
- Prize Fighter (1995)
- Pro Yakyuu Super League CD (1992)
- Psychic Dectective vol. 3: Psychic Detective Aya (1993)
- Psychic Dectective vol. 4: Psychic Detective Orgel (1993)
- Puggsy (1993)
- Quiz Scramble Special (1992)
- Racing Aces (1993)
- Radical Rex (1994)
- Ranma ½: Byukuran Aika (1993)
- RDF Global Conflict (1995)
- Record of Lodoss War JASPAC (1994)
- Revenge of the Ninja (1993)
- Revengers of Vengeance (1993)
- Rise of the Dragon (1992)
- Road Avenger (1992)
- Road Rash (1995)
- Robo Aleste (1993)
- Romance of the Three Kingdoms III: Dragon of Destiny (1993)
- Samurai Shodown (1995)
- The Secret of Monkey Island (1993)
- Sega Classics Arcade Collection (1993)
- Seima Densetsu 3×3 Eyes (1993)
- Sengoku Denshou SNK Sammy Studios (1993)
- Sensible Soccer (1993)
- Sewer Shark (1992)
- Shadow of the Beast II (1994)
- Shadowrun Compile FASA Interactive (1996)
- Sherlock Holmes: Consulting Detective Vol. II (1992)
- Sherlock Holmes: Consulting Detective (1992)
- Shin Megami Tensei (1994)
- Shining Force CD (1994)
- Silpheed (1993)
- SimEarth (1993)
- Slam City with Scottie Pippen (1992)*
- The Smurfs (1995)
- Snatcher (1994)
- Sol-Feace (1991)
- Sonic the Hedgehog CD (1993)
- Soulstar (1994)
- Space Ace (1993)
- The Space Adventure (1995)
- Spider-Man vs. The Kingpin (1993)
- Star Strike (2000)
- Star Wars Chess (1993)
- Star Wars: Rebel Assault (1994)
- StarBlade (1994)
- Stellar Fire (1993)
- Supreme Warrior (1994)*
- Surgical Strike (1995)
- Syndicate (1993)
- Tenbu: Mega CD Special (1992)
- Tenka Fubu (1991)
- The Terminator (1994)
- Theme Park (1995)
- The Third World War (1993)
- Thunderhawk (1993)
- Time Gal (1992)
- Tokyo Mahjong Gakuen (1996)
- Tomcat Alley (1994)
- Trivial Pursuit (1994)
- Urusei Yatsura: My Dear Friends (1994)
- Vay (1993)
- Warau Salesman (1993)
- Wheel of Fortune (1994)
- Who Shot Johnny Rock? (1993)
- Wild Woody (1995)
- Wing Commander (1994)
- Winning Post (1993)
- Wirehead (1995)
- Wolfchild (1993)
- Wonder Dog (1992)
- Wonderchild (unreleased)
- WonderMega Collection (1992)
- World Cup USA '94 (1994)
- WWF Rage in the Cage (1993)
- Yumimi Mix (1993)
Gallery
Box Scans
External Links
- Console Database - Sega Mega CD/Sega CD
- Sega CD Development Guide By Mask of Destiny.
Sega Home Video Game Systems | ||||||||||||||||||||||||||||
83 | 84 | 85 | 86 | 87 | 88 | 89 | 90 | 91 | 92 | 93 | 94 | 95 | 96 | 97 | 98 | 99 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
SG-1000 | SG-1000 II | Mega Drive | Mega Drive II | |||||||||||||||||||||||||
SC-3000 | Mega-CD | Mega-CD II | Genesis 3 | |||||||||||||||||||||||||
Sega Mark III | 32X | Dreamcast | ||||||||||||||||||||||||||
Master System | Master System II | |||||||||||||||||||||||||||
AI Computer | Game Gear | |||||||||||||||||||||||||||
Saturn | ||||||||||||||||||||||||||||
Pico | Beena |