| name | Hideaki Kobayashi |
| file | DCM JP 19991001 1999-30.pdf |
| filepage | 57 |
| name | Hideaki Kobayashi |
| file | SonicMegaCollection GC US Credits.pdf |
| filepage | |
| name | Hideaki Kobayashi |
| file | Sonic Battle GBA credits.pdf |
| filepage | |
| name | Hideaki Kobayashi |
| file | Sonic Advance 3 GBA credits.pdf |
| filepage | |
| name | Hideaki Kobayashi |
| file | PSOBBSoundTrack CD JP Box.jpg |
| filepage | |
| name | Hideaki Kobayashi |
| file | SonicRidersOST CD JP booklet.pdf |
| filepage | 3 |
| name | Hideaki Kobayashi |
| file | SRZGOST CD JP booklet.pdf |
| filepage | 7 |
| name | Hideaki Kobayashi |
| file | PSP2OSTWoU CD JP Booklet.pdf |
| filepage | 11 |
| name | Hideaki Kobayashi |
| file | GoSega60thAnniversaryAlbum CD JP Booklet.pdf |
| filepage | 20 |