BIOS File Headers (Sega Mega CD)
A useful resource when dealing with BIOS files is to know how their headers look so when you open a binary dump you can identify the BIOS version.
BIOS Version | Header | Compile date |
|---|---|---|
Mega-CD 1.00g (JP) | SEGA MEGA DRIVE (C)SEGA 1991.NOVMEGA-CD BOOT ROM 11/20-1991 17:00 1.00gMEGA-CD BOOT ROM | November 20th 1991 5:00 AM |
Mega-CD 1.00L (JP) | SEGA MEGA DRIVE (C)SEGA 1991.NOVMEGA-CD BOOT ROM 12/02-1991 15:20 1.00lMEGA-CD BOOT ROM | December 2nd 1991 at 3:30 pm |
Mega-CD 1.00o (JP) | SEGA MEGA DRIVE (C)SEGA 1991.NOVMEGA-CD BOOT ROM 12/06-1991 10:10 1.00oMEGA-CD BOOT ROM | December 6th 1991 10:10 AM |
Mega-CD 1.00P (JP) | SEGA MEGA DRIVE (C)SEGA 1991.NOVMEGA-CD BOOT ROM 12/17-1991 12:00 1.00pMEGA-CD BOOT ROM | December 17th 1991 12:00 PM |
Mega-CD 1.00S (JP) | SEGA MEGA DRIVE (C)SEGA 1991.DECMEGA-CD BOOT ROM 12/28-1991 OS220:30 1.00SMEGA-CD BOOT ROM | December 28th 1991 8:30 PM |
Sega Wonder-Mega 1.00W (JP) | SEGA MEGA DRIVE (C)SEGA 1992.FEBWONDER-MEGA BOOTROM 02/06-1992 01:30 1.00WWONDER-MEGA BOOT | February 6th 1992 1:30 AM |
Mega-CD 1.11 (JP) | SEGA MEGA DRIVE (C)SEGA 1992.MAYMEGA-CD BOOT ROM 05/01-1992 02:30 1.11 MEGA-CD BOOT ROM | May 1st 1992 2:30 AM |
Sega CD 1.00 (US) | SEGA MEGA DRIVE (C)SEGA 1992.JULSEGA-CD BOOT ROM08/04-1992 03:00 1.00 SEGA-CD BOOT ROM | August 4th 1992 3:00 AM |
Sega CD 1.10 (US) | SEGA MEGA DRIVE (C)SEGA 1992.OCTSEGA-CD BOOT ROM10/11-1992 18:30 1.10 SEGA-CD BOOT ROM | November 11th 1992 6:30 PM |
Mega-CD 1.00 (E) | SEGA MEGA DRIVE (C)SEGA 1992.OCTMEGA-CD BOOT ROM10/27-1992 15:15 1.00 MEGA-CD BOOT ROM | October 27th 1992 3:15 PM |
Mega-CD 2.00C (JP) | SEGA MEGA DRIVE (C)SEGA 1992.DECCD2 BOOT ROM 12/22-1992 14:00 2.00cCD2 BOOT ROM | December 22nd 1992 2:00 PM |
Sega CD 2.00 (US) | SEGA MEGA DRIVE (C)SEGA 1993.MARCD2 BOOT ROM 03/14-1993 01:00 2.00 CD2 BOOT ROM | March 14th 1993 1:00 AM |
Mega-CD 2.00 (E) | SEGA MEGA DRIVE (C)SEGA 1993.MARCD2 BOOT ROM 03/30-1993 12:00 2.00 CD2 BOOT ROM | March 30th 1993 12:00 PM |
LaserActive 0.98 (JP) | SEGA MEGA DRIVE (C)SEGA 1993.APRMEGA-LD BOOT ROM 03/29-1993 17:00 0.98 MEGA-LD BOOT ROM | April 29th 1993 5:00 PM |
LaserActive 0.98 (US) | SEGA MEGA DRIVE (C)SEGA 1993.APRMEGA-LD BOOT ROM 03/29-1993 17:00 0.98 MEGA-LD BOOT ROM | April 29th 1993 5:00 PM |
LaserActive 1.04 (US) | SEGA GENESIS (C)SEGA 1993.APRMEGA-LD BOOT ROM 09/22-1993 17:00 1.04 MEGA-LD BOOT ROM | September 22nd 1993 5:00 PM |
Sega WonderMega 2.00 (JP) | SEGA MEGA DRIVE (C)SEGA 1993.MAYWONDERMEGA2 BOOTROM 05/27-1993 13:20 2.00 WONDERMEGA2 BOOT | May 27th 1993 1:20 PM |
Mega-CD 2.00W (E) b1 | SEGA MEGA DRIVE (C)SEGA 1993.JUNCD2 BOOT ROM 06/01-1993 20:00 2.00WCD2 BOOT ROM | June 1st 1993 8:00 PM |
Sega CD 2.00W (US) | SEGA MEGA DRIVE (C)SEGA 1993.JUNCD2 BOOT ROM 06/01-1993 20:00 2.00WCD2 BOOT ROM | June 1st 1993 8:00 PM |
Sega CD 2.11X (US) | SEGA MEGA DRIVE (C)SEGA 1993.JUNCD2 BOOT ROM 06/21-1993 16:00 2.11XCD2 BOOT ROM | June 21st 1993 4:00 PM |
Sega CDX 2.21x (US) | SEGA MEGA DRIVE (C)SEGA 1993.SEPCDX BOOT ROM 09/07-1993 19:00 2.21XCDX BOOT ROM | September 7th 1993 7:00 PM |
Multi-Mega 2.21x (EU) | SEGA MEGA DRIVE (C)SEGA 1993.SEPCDX BOOT ROM 09/16-1993 14:00 2.21XCDX BOOT ROM | September 16th 1993 2:00 PM |
JVC X'Eye 2.00x (US) | SEGA MEGA DRIVE (C)SEGA 1993.DECWONDERMEGA2 BOOTROM 12/27-1993 16:30 2.00 X EYE BOOT for(MP) | December 27th 1993 4:30 PM |
JVC X'Eye 2.00 (JP) | SEGA MEGA DRIVE (C)SEGA 1993.DECWONDERMEGA2 BOOTROM 12/27-1993 16:30 2.00 X EYE BOOT for(MP) | December 27th 1993 4:30 PM |
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