Sega: Mega CD

Start with the Mega CD BIOS for the region of your games:

North America, Latin America: bios_CD_U.bin. ares reads SegaCDBIOS9303.bin instead.
Europe, Oceania: bios_CD_E.bin. ares reads eu_mcd2_9303.bin instead. PicoDrive reads eu_mcd2_9306.bin instead.
Japan: bios_CD_J.bin. ares and PicoDrive read jp_mcd2_921222.bin instead.

How to read a card

A card gives the file's fingerprints, the emulators that read it, the setups that list it and where to download it. A file can have several versions, one per region or revision: the main one comes first, the others under "Variants". To install the files of one console, open its "Install" box.

On the setup's list names the setups whose own BIOS list has the file, by the name each gives it. Packed for its emulators by names the setups whose pack adds it because one of their emulators reads it.

Install the files of Mega CD

Each platform names the system its own way.

Linux, macOS, Steam Deck:

# AmberELEC
curl -fsSL https://raw.githubusercontent.com/Abdess/retrobios/main/install.sh | sh -s -- --platform amberelec --system sega-mega-cd
# Batocera
curl -fsSL https://raw.githubusercontent.com/Abdess/retrobios/main/install.sh | sh -s -- --platform batocera --system sega-mega-cd
# EmuDeck
curl -fsSL https://raw.githubusercontent.com/Abdess/retrobios/main/install.sh | sh -s -- --platform emudeck --system sega-mega-cd
# EmuELEC
curl -fsSL https://raw.githubusercontent.com/Abdess/retrobios/main/install.sh | sh -s -- --platform emuelec --system sega-mega-cd
# KNULLI
curl -fsSL https://raw.githubusercontent.com/Abdess/retrobios/main/install.sh | sh -s -- --platform knulli --system sega-mega-cd
# Lakka
curl -fsSL https://raw.githubusercontent.com/Abdess/retrobios/main/install.sh | sh -s -- --platform lakka --system sega-mega-cd
# MiSTer FPGA
curl -fsSL https://raw.githubusercontent.com/Abdess/retrobios/main/install.sh | sh -s -- --platform misterfpga --system sega-mega-cd
# Recalbox
curl -fsSL https://raw.githubusercontent.com/Abdess/retrobios/main/install.sh | sh -s -- --platform recalbox --system sega-mega-cd
# RetroArch
curl -fsSL https://raw.githubusercontent.com/Abdess/retrobios/main/install.sh | sh -s -- --platform retroarch --system sega-mega-cd
# RetroBat
curl -fsSL https://raw.githubusercontent.com/Abdess/retrobios/main/install.sh | sh -s -- --platform retrobat --system megacd
# RetroDECK
curl -fsSL https://raw.githubusercontent.com/Abdess/retrobios/main/install.sh | sh -s -- --platform retrodeck --system sega-mega-cd
# RetroPie
curl -fsSL https://raw.githubusercontent.com/Abdess/retrobios/main/install.sh | sh -s -- --platform retropie --system sega-mega-cd
# ROCKNIX
curl -fsSL https://raw.githubusercontent.com/Abdess/retrobios/main/install.sh | sh -s -- --platform rocknix --system sega-mega-cd
# RomM
curl -fsSL https://raw.githubusercontent.com/Abdess/retrobios/main/install.sh | sh -s -- --platform romm --system sega-mega-cd

Windows (PowerShell):

# AmberELEC
&([scriptblock]::Create((irm https://raw.githubusercontent.com/Abdess/retrobios/main/install.ps1))) --platform amberelec --system sega-mega-cd
# Batocera
&([scriptblock]::Create((irm https://raw.githubusercontent.com/Abdess/retrobios/main/install.ps1))) --platform batocera --system sega-mega-cd
# EmuDeck
&([scriptblock]::Create((irm https://raw.githubusercontent.com/Abdess/retrobios/main/install.ps1))) --platform emudeck --system sega-mega-cd
# EmuELEC
&([scriptblock]::Create((irm https://raw.githubusercontent.com/Abdess/retrobios/main/install.ps1))) --platform emuelec --system sega-mega-cd
# KNULLI
&([scriptblock]::Create((irm https://raw.githubusercontent.com/Abdess/retrobios/main/install.ps1))) --platform knulli --system sega-mega-cd
# Lakka
&([scriptblock]::Create((irm https://raw.githubusercontent.com/Abdess/retrobios/main/install.ps1))) --platform lakka --system sega-mega-cd
# MiSTer FPGA
&([scriptblock]::Create((irm https://raw.githubusercontent.com/Abdess/retrobios/main/install.ps1))) --platform misterfpga --system sega-mega-cd
# Recalbox
&([scriptblock]::Create((irm https://raw.githubusercontent.com/Abdess/retrobios/main/install.ps1))) --platform recalbox --system sega-mega-cd
# RetroArch
&([scriptblock]::Create((irm https://raw.githubusercontent.com/Abdess/retrobios/main/install.ps1))) --platform retroarch --system sega-mega-cd
# RetroBat
&([scriptblock]::Create((irm https://raw.githubusercontent.com/Abdess/retrobios/main/install.ps1))) --platform retrobat --system megacd
# RetroDECK
&([scriptblock]::Create((irm https://raw.githubusercontent.com/Abdess/retrobios/main/install.ps1))) --platform retrodeck --system sega-mega-cd
# RetroPie
&([scriptblock]::Create((irm https://raw.githubusercontent.com/Abdess/retrobios/main/install.ps1))) --platform retropie --system sega-mega-cd
# ROCKNIX
&([scriptblock]::Create((irm https://raw.githubusercontent.com/Abdess/retrobios/main/install.ps1))) --platform rocknix --system sega-mega-cd
# RomM
&([scriptblock]::Create((irm https://raw.githubusercontent.com/Abdess/retrobios/main/install.ps1))) --platform romm --system sega-mega-cd

Files

`us_scd2_9306.bin` 128.0 KB

On the setup's list: bios_CD_U.bin: Batocera, KNULLI, RetroBat
bios/bios_CD_U.bin: AmberELEC, EmuELEC
EmuDeck
Packed for its emulators by: us_scd2_9306.bin: Lakka, Recalbox, RetroArch, RetroPie, ROCKNIX
Bios/GG/us_scd2_9306.bin and Bios/MD/us_scd2_9306.bin and Bios/SMS/us_scd2_9306.bin: MinUI, MyMinUI
Bios/32X/us_scd2_9306.bin and Bios/GG/us_scd2_9306.bin and Bios/MD/us_scd2_9306.bin and Bios/SEGACD/us_scd2_9306.bin and Bios/SG1000/us_scd2_9306.bin and Bios/SMS/us_scd2_9306.bin: NextUI
bios/us_scd2_9306.bin: RetroDECK
segacd/us_scd2_9306.bin: RomM
Emulators: BizHawk, PicoDrive
Collection path: bios/Sega/Mega CD/us_scd2_9306.bin (download)
Catalogued: No-Intro [BIOS] Sega CD 2 (USA) (Rev A).md
TOSEC Sega CD Model 2 BIOS v2.00w (1993)(Sega)(US).bin
SHA1: 5adb6c3af218c60868e6b723ec47e36bbdf5e6f0
MD5: 854b9150240a198070150e4566ae1290
CRC32: 9f6f6276
SHA256: b1c2036b79467514eaaa69c76e5ba83801621e821059caa53cb921a0b21e3af4

`MCD_eu_100.bin` 128.0 KB

On the setup's list: bios_CD_E.bin: Batocera, EmuDeck, KNULLI, Lakka, RetroArch, RetroBat, RetroPie, ROCKNIX
bios/bios_CD_E.bin: AmberELEC, EmuELEC, RetroDECK
segacd/bios_CD_E.bin: Recalbox, RomM
MCD_eu_100.bin: BizHawk
Packed for its emulators by: Bios/GG/bios_CD_E.bin and Bios/GG/eu_mcd1_9210.bin and Bios/MD/bios_CD_E.bin and Bios/MD/eu_mcd1_9210.bin and Bios/SMS/bios_CD_E.bin and Bios/SMS/eu_mcd1_9210.bin: MinUI, MyMinUI
Bios/32X/bios_CD_E.bin and Bios/32X/eu_mcd1_9210.bin and Bios/GG/bios_CD_E.bin and Bios/GG/eu_mcd1_9210.bin and Bios/MD/bios_CD_E.bin and Bios/MD/eu_mcd1_9210.bin and Bios/SEGACD/bios_CD_E.bin and Bios/SEGACD/eu_mcd1_9210.bin and Bios/SG1000/bios_CD_E.bin and Bios/SG1000/eu_mcd1_9210.bin and Bios/SMS/bios_CD_E.bin and Bios/SMS/eu_mcd1_9210.bin: NextUI
Emulators: BizHawk, BlastEm, Genesis Plus GX, Genesis Plus GX Expanded, Genesis Plus GX Wide, jgenesis, Kega Fusion, MD.emu, PicoDrive, Pizza Boy SC
Collection path: bios/Sega/Mega CD/MCD_eu_100.bin (download)
Catalogued: No-Intro [BIOS] Mega-CD (Europe).md
TOSEC Sega Mega-CD BIOS v1.00 (1993)(Sega)(EU)(en).bin
SHA1: f891e0ea651e2232af0c5c4cb46a0cae2ee8f356
MD5: e66fa1dc5820d254611fdcdba0662372
CRC32: 529ac15a
SHA256: 16735df92fcc1d0fc6a1eced244867e95281c5006340926082b74e363e073dc4

`eu_mcd2_9306.bin` 128.0 KB

On the setup's list: EmuDeck
Packed for its emulators by: eu_mcd2_9306.bin: Batocera, KNULLI, Lakka, Recalbox, RetroArch, RetroPie, ROCKNIX
bios/eu_mcd2_9306.bin: AmberELEC, EmuELEC, RetroDECK
Bios/GG/eu_mcd2_9306.bin and Bios/MD/eu_mcd2_9306.bin and Bios/SMS/eu_mcd2_9306.bin: MinUI, MyMinUI
Bios/32X/eu_mcd2_9306.bin and Bios/GG/eu_mcd2_9306.bin and Bios/MD/eu_mcd2_9306.bin and Bios/SEGACD/eu_mcd2_9306.bin and Bios/SG1000/eu_mcd2_9306.bin and Bios/SMS/eu_mcd2_9306.bin: NextUI
MCD_eu_200w.bin and eu_mcd2_9306.bin: RetroBat
segacd/eu_mcd2_9306.bin: RomM
Emulators: BizHawk, PicoDrive
Collection path: bios/Sega/Mega CD/eu_mcd2_9306.bin (download)
Catalogued: No-Intro [BIOS] Mega-CD 2 (Europe) (Rev A).md
TOSEC Sega Mega-CD II BIOS v2.00w (1993)(Sega)(EU)(en).bin
SHA1: f5f60f03501908962446ee02fc27d98694dd157d
MD5: b10c0a97abc57b758497d3fae6ab35a4
CRC32: 4d5cb8da
SHA256: 71eb86242d8d155ead2ab86721ef5ca236aba004018c500d46e55fc81ddd79b4

`MCD_jp_100p.bin` 128.0 KB

On the setup's list: bios_CD_J.bin: Batocera, EmuDeck, KNULLI, Lakka, RetroArch, RetroBat, RetroPie, ROCKNIX
bios/bios_CD_J.bin: AmberELEC, EmuELEC, RetroDECK
segacd/bios_CD_J.bin: Recalbox, RomM
MCD_jp_100p.bin: BizHawk
Packed for its emulators by: Bios/GG/bios_CD_J.bin and Bios/GG/jp_mcd1_9111.bin and Bios/MD/bios_CD_J.bin and Bios/MD/jp_mcd1_9111.bin and Bios/SMS/bios_CD_J.bin and Bios/SMS/jp_mcd1_9111.bin: MinUI, MyMinUI
Bios/32X/bios_CD_J.bin and Bios/32X/jp_mcd1_9111.bin and Bios/GG/bios_CD_J.bin and Bios/GG/jp_mcd1_9111.bin and Bios/MD/bios_CD_J.bin and Bios/MD/jp_mcd1_9111.bin and Bios/SEGACD/bios_CD_J.bin and Bios/SEGACD/jp_mcd1_9111.bin and Bios/SG1000/bios_CD_J.bin and Bios/SG1000/jp_mcd1_9111.bin and Bios/SMS/bios_CD_J.bin and Bios/SMS/jp_mcd1_9111.bin: NextUI
Emulators: BizHawk, BlastEm, Genesis Plus GX, Genesis Plus GX Expanded, Genesis Plus GX Wide, jgenesis, Kega Fusion, MD.emu, PicoDrive, Pizza Boy SC
Collection path: bios/Sega/Mega CD/MCD_jp_100p.bin (download)
Catalogued: No-Intro [BIOS] Mega-CD (Japan) (Rev E).md
TOSEC Sega Mega-CD BIOS v1.00p (1991)(Sega)(JP)(en-ja).bin
SHA1: 4846f448160059a7da0215a5df12ca160f26dd69
MD5: 278a9397d192149e84e820ac621a8edd
CRC32: 9d2da8f2
SHA256: 923eb9da740f98ab1572085e3d351e2c0982df0906b0b99efb68a9997c94cf8f

`jp_mcd2_921222.bin` 128.0 KB

On the setup's list: MegaCD/Japan/cd_bios.rom: MiSTer FPGA
EmuDeck
Packed for its emulators by: jp_mcd2_921222.bin: Batocera, KNULLI, Lakka, Recalbox, RetroArch, RetroPie, ROCKNIX
bios/jp_mcd2_921222.bin: AmberELEC, EmuELEC, RetroDECK
Bios/GG/jp_mcd2_921222.bin and Bios/MD/jp_mcd2_921222.bin and Bios/SMS/jp_mcd2_921222.bin: MinUI, MyMinUI
Bios/32X/jp_mcd2_921222.bin and Bios/GG/jp_mcd2_921222.bin and Bios/MD/jp_mcd2_921222.bin and Bios/SEGACD/jp_mcd2_921222.bin and Bios/SG1000/jp_mcd2_921222.bin and Bios/SMS/jp_mcd2_921222.bin: NextUI
MCD_2_jp_200c.bin and jp_mcd2_921222.bin: RetroBat
segacd/jp_mcd2_921222.bin: RomM
Emulators: ares, BizHawk, PicoDrive
Collection path: bios/Sega/Mega CD/jp_mcd2_921222.bin (download)
Catalogued: No-Intro [BIOS] Mega-CD 2 (Japan).md
TOSEC Sega Mega-CD 2 BIOS v2.00c (1992)(Sega)(JP)(en-ja).bin
SHA1: d203cfe22c03ae479dd8ca33840cf8d9776eb3ff
MD5: 683a8a9e273662561172468dfa2858eb
CRC32: dd6cc972
SHA256: 7133fc2dd2fe5b7d0acd53a5f10f3d00b5d31270239ad20d74ef32393e24af88

`eu_mcd2_9303.bin` 128.0 KB

On the setup's list: MegaCD/Europe/cd_bios.rom: MiSTer FPGA
EmuDeck
Packed for its emulators by: eu_mcd2_9303.bin: Batocera, KNULLI, Lakka, Recalbox, RetroArch, RetroPie, ROCKNIX
bios/eu_mcd2_9303.bin: AmberELEC, EmuELEC, RetroDECK
Bios/GG/eu_mcd2_9303.bin and Bios/MD/eu_mcd2_9303.bin and Bios/SMS/eu_mcd2_9303.bin: MinUI, MyMinUI
Bios/32X/eu_mcd2_9303.bin and Bios/GG/eu_mcd2_9303.bin and Bios/MD/eu_mcd2_9303.bin and Bios/SEGACD/eu_mcd2_9303.bin and Bios/SG1000/eu_mcd2_9303.bin and Bios/SMS/eu_mcd2_9303.bin: NextUI
MCD_eu_200.bin and eu_mcd2_9303.bin: RetroBat
segacd/eu_mcd2_9303.bin: RomM
Emulators: ares, BizHawk, PicoDrive
Collection path: bios/Sega/Mega CD/eu_mcd2_9303.bin (download)
Catalogued: No-Intro [BIOS] Mega-CD 2 (Europe).md
TOSEC Sega Mega-CD II BIOS v2.00 (1993)(Sega)(EU)(en).bin
SHA1: 7063192ae9f6b696c5b81bc8f0a9fe6f0c400e58
MD5: 9b562ebf2d095bf1dabadbc1881f519a
CRC32: 0507b590
SHA256: fe608a2a07676a23ab5fd5eee2f53c9e2526d69a28aa16ccd85c0ec42e6933cb

`SegaCDBIOS9303.bin` 128.0 KB

On the setup's list: MegaCD/USA/cd_bios.rom: MiSTer FPGA
EmuDeck
Packed for its emulators by: SegaCDBIOS9303.bin: Batocera, KNULLI, Lakka, Recalbox, RetroArch, RetroPie, ROCKNIX
bios/SegaCDBIOS9303.bin: AmberELEC, EmuELEC, RetroDECK
Bios/GG/SegaCDBIOS9303.bin and Bios/MD/SegaCDBIOS9303.bin and Bios/SMS/SegaCDBIOS9303.bin: MinUI, MyMinUI
Bios/32X/SegaCDBIOS9303.bin and Bios/GG/SegaCDBIOS9303.bin and Bios/MD/SegaCDBIOS9303.bin and Bios/SEGACD/SegaCDBIOS9303.bin and Bios/SG1000/SegaCDBIOS9303.bin and Bios/SMS/SegaCDBIOS9303.bin: NextUI
SCD_m2_us_200.bin and SegaCDBIOS9303.bin: RetroBat
segacd/SegaCDBIOS9303.bin: RomM
Emulators: ares, BizHawk, PicoDrive
Collection path: bios/Sega/Mega CD/SegaCDBIOS9303.bin (download)
Catalogued: No-Intro [BIOS] Sega CD 2 (USA).md
TOSEC Sega CD Model 2 BIOS v2.00 (1993)(Sega)(US).bin
SHA1: 5a8c4b91d3034c1448aac4b5dc9a6484fce51636
MD5: 310a9081d2edf2d316ab38813136725e
CRC32: 8af65f58
SHA256: fb477cdbf94c84424c2feca4fe40656d85393fe7b7b401911b45ad2eb991258c

`bios_CD_U.bin` 128.0 KB

On the setup's list: bios_CD_U.bin: EmuDeck, Lakka, RetroArch, RetroPie, ROCKNIX
segacd/bios_CD_U.bin: Recalbox, RomM
SCD_m1_us_110.bin: BizHawk
bios/bios_CD_U.bin: RetroDECK
Packed for its emulators by: Bios/GG/bios_CD_U.bin and Bios/GG/us_scd1_9210.bin and Bios/MD/bios_CD_U.bin and Bios/MD/us_scd1_9210.bin and Bios/SMS/bios_CD_U.bin and Bios/SMS/us_scd1_9210.bin: MinUI, MyMinUI
bios/bios_CD_U.bin and bios/us_scd1_9210.bin: AmberELEC, EmuELEC
bios_CD_U.bin and us_scd1_9210.bin: Batocera, KNULLI
Bios/32X/bios_CD_U.bin and Bios/32X/us_scd1_9210.bin and Bios/GG/bios_CD_U.bin and Bios/GG/us_scd1_9210.bin and Bios/MD/bios_CD_U.bin and Bios/MD/us_scd1_9210.bin and Bios/SEGACD/bios_CD_U.bin and Bios/SEGACD/us_scd1_9210.bin and Bios/SG1000/bios_CD_U.bin and Bios/SG1000/us_scd1_9210.bin and Bios/SMS/bios_CD_U.bin and Bios/SMS/us_scd1_9210.bin: NextUI
SCD_m1_us_110.bin and bios_CD_U.bin and us_scd1_9210.bin: RetroBat
Emulators: BizHawk, BlastEm, Genesis Plus GX, Genesis Plus GX Expanded, Genesis Plus GX Wide, jgenesis, Kega Fusion, MD.emu, Mednafen, PicoDrive, Pizza Boy SC
Collection path: bios/Sega/Mega CD/bios_CD_U.bin (download)
Catalogued: No-Intro [BIOS] Sega CD (USA) (Rev B).md
TOSEC Sega CD Model 1 BIOS v1.10 (1992)(Sega)(US).bin
SHA1: f4f315adcef9b8feb0364c21ab7f0eaf5457f3ed
MD5: 2efd74e3232ff260e371b99f84024f7f
CRC32: c6d10268
SHA256: 807384678ef259494d943eddb6954dfc7069693d0dde0c424e2028488d88e81a

`jp_mcd1_9112.bin` 128.0 KB

On the setup's list: EmuDeck
Packed for its emulators by: jp_mcd1_9112.bin: Batocera, KNULLI, Lakka, Recalbox, RetroArch, RetroPie, ROCKNIX
bios/jp_mcd1_9112.bin: AmberELEC, EmuELEC, RetroDECK
Bios/GG/jp_mcd1_9112.bin and Bios/MD/jp_mcd1_9112.bin and Bios/SMS/jp_mcd1_9112.bin: MinUI, MyMinUI
Bios/32X/jp_mcd1_9112.bin and Bios/GG/jp_mcd1_9112.bin and Bios/MD/jp_mcd1_9112.bin and Bios/SEGACD/jp_mcd1_9112.bin and Bios/SG1000/jp_mcd1_9112.bin and Bios/SMS/jp_mcd1_9112.bin: NextUI
MCD_as_100s.bin and jp_mcd1_9112.bin: RetroBat
segacd/jp_mcd1_9112.bin: RomM
Emulators: BizHawk, PicoDrive
Collection path: bios/Sega/Mega CD/jp_mcd1_9112.bin (download)
Catalogued: No-Intro [BIOS] Mega-CD (Asia) (Ja) (Rev H).md
TOSEC Sega Mega-CD BIOS v1.00s (1991)(Sega)(AS)(en-ja).bin
SHA1: e4193c6ae44c3cea002707d2a88f1fbcced664de
MD5: bdeb4c47da613946d422d97d98b21cda
CRC32: 550f30bb
SHA256: e8dbee3edcd1b2751c72c1d9ae0dac1aacd9203804bfc1a35ea098d8778bcb1c

`US Sega CD 2 (Region Free) 930601 l_oliveira.bin` 128.0 KB

On the setup's list: MegaCD/boot.rom: MiSTer FPGA
Collection path: bios/Sega/Mega CD/US Sega CD 2 (Region Free) 930601 l_oliveira.bin (download)
SHA1: 9eed922bec1b9ff2b611dacf484d710b732bea5e
MD5: 14db9657bbaa6fbb9249752424dc0ce4
CRC32: 7e86c5da
SHA256: 59403e7f8be1d4e98d673cca17cfec072770a56415165ad7ac88dcd3f7273317

`[BIOS] WonderMega (Japan) (En).bin` 128.0 KB

Packed for its emulators by: WM_jp_100W.bin: RetroBat
Emulators: BizHawk
Collection path: bios/Sega/Mega CD/[BIOS] WonderMega (Japan) (En).bin (download)
Catalogued: No-Intro [BIOS] WonderMega (Japan) (En).md
TOSEC Wondermega v1.00W (1992-02-06)(Sega)(JP)(en).bin
SHA1: 3fc9358072f74bd24e3e297ea11b2bf15a7af891
MD5: 732b60960226caf33df6b487f376de69
CRC32: d21fe71d
SHA256: f84d43ae82be5c03fa418286e8142c377869cd392c0d3a9dd5ba72b78d2075fc

`cart.brm` 512.0 KB No reader

Collection path: bios/Sega/Mega CD/cart.brm (download)
SHA1: 2a170e18ca44a8bbaa8d36675cdae9e7203026d0
MD5: 51de1667b2a131377ed6f2aacbe14e7e
CRC32: 757b3a78
SHA256: 26ec7848cdbf4fcdae522c16f707ccc9bb7ae9f492db912f09f94d5bac4dd65d

`MCD_aiwa_jp_211c.bin` 128.0 KB

Packed for its emulators by: MCD_aiwa_jp_211c.bin: RetroBat
Emulators: BizHawk
Collection path: bios/Sega/Mega CD/MCD_aiwa_jp_211c.bin (download)
Catalogued: No-Intro [BIOS] Aiwa CSD-GM1 (Japan).md
TOSEC Aiwa CSD-GM1 v2.11c (1993)(Aiwa - Sega)(JP)(en-ja).bin
SHA1: 219d284dcf63ce366a4dc6d1ff767a0d2eea283d
MD5: 7e85dd6ae3ecf51eac71cd6ced8fdc6d
CRC32: 8052c7a0
SHA256: 71cc991de845e2707ba30ba61fff661a2df51471909f47b59518be5457944387

`MCD_eu_221.bin` 128.0 KB

Packed for its emulators by: MCD_eu_221.bin: RetroBat
Emulators: BizHawk
Collection path: bios/Sega/Mega CD/MCD_eu_221.bin (download)
Catalogued: No-Intro [BIOS] Mega-CD 2 (Europe) (v2.11).md
SHA1: 9de4eda59f544db2d5fd7e6514601f7b648d8eb4
MD5: 2b57402ab187e156dc5f2f83b7b594b7
CRC32: c1aa217f
SHA256: e8f226369a2ba79afa7bdab412538540ca10191032c01a12da4e19b7c6065cc2

`MCD_jp_111b.bin` 128.0 KB

Packed for its emulators by: MCD_jp_111b.bin: RetroBat
Emulators: BizHawk
Collection path: bios/Sega/Mega CD/MCD_jp_111b.bin (download)
Catalogued: No-Intro [BIOS] Mega-CD (Japan) (v1.11B).md
SHA1: 204758d5a64c24e96e1a9fe6bd82e1878fef7ade
MD5: 3dcb4e9924b0df8fa5d7252a9cd43f78
CRC32: 4be18ff6
SHA256: 48399209da338188163f19c86bc2b273b11d5c22de1c5c7e5539fdd4cc123f8a

`MCD_jp_beta.bin` 128.0 KB

Packed for its emulators by: MCD_jp_beta.bin: RetroBat
Emulators: BizHawk
Collection path: bios/Sega/Mega CD/MCD_jp_beta.bin (download)
Catalogued: No-Intro [BIOS] Mega-CD (Japan) (Beta).md
SHA1: f30d109d1c2f7c9feaf38600c65834261db73d1f
MD5: e99e30eeffee8201f9eb2c6e219b6fc2
CRC32: 41af44c4
SHA256: 5d2593cfe190d5a47732353d220540a8b14a5bd5532fec2117f132e586272c87

`MCD_jp_reva.bin` 128.0 KB

Packed for its emulators by: MCD_jp_reva.bin: RetroBat
Emulators: BizHawk
Collection path: bios/Sega/Mega CD/MCD_jp_reva.bin (download)
Catalogued: No-Intro [BIOS] Mega-CD (Japan) (Rev A).md
SHA1: 062e6a912e3683f7f127cbfd6314b44f93c42db7
MD5: 7882cb53ec33ba550c67dc1afa688cc5
CRC32: c49d3663
SHA256: ef286dc2a2f563f36f06c76c0e0628b3eadf18dd860d05f0cafa119f86f4fbdc

`MM_eu_221x.bin` 128.0 KB

Packed for its emulators by: MM_eu_221x.bin: RetroBat
Emulators: BizHawk
Collection path: bios/Sega/Mega CD/MM_eu_221x.bin (download)
Catalogued: No-Intro [BIOS] Multi-Mega (Europe).md
TOSEC Sega Multi-Mega BIOS v2.21x (1994)(Sega)(EU)(en).bin
SHA1: 75548ac9aaa6e81224499f9a1403b2b42433f5b7
MD5: d91b0fd488d29624c4ef2ee7b19efff0
CRC32: aacb851e
SHA256: 90406fce43f1c44d431eba87db2eaf99847b40c13a996601d0622bcb6f98cdb9

`WM_jp_m2.bin` 128.0 KB

Packed for its emulators by: WM_jp_m2.bin: RetroBat
Emulators: BizHawk
Collection path: bios/Sega/Mega CD/WM_jp_m2.bin (download)
Catalogued: No-Intro [BIOS] WonderMega M2 (Japan) (En).md
TOSEC Wondermega M2 RG-M2 (1993-05-25)(Sega - Victor)(JP).bin
SHA1: b3f32e409bd5508c89ed8be33d41a58d791d0e5d
MD5: d32f50fb7f4355c45d5db306a0d38fa4
CRC32: 2b19972f
SHA256: 3aeccd967f34ebb678bbb7b3caa232aba11c6d6f71ce7bc21033733724c7b112

`XEye_us.bin` 128.0 KB

Packed for its emulators by: XEye_us.bin: RetroBat
Emulators: BizHawk
Collection path: bios/Sega/Mega CD/XEye_us.bin (download)
Catalogued: No-Intro [BIOS] X'Eye (USA).md
TOSEC X'Eye (1993-12-27)(JVC - Sega)(US).bin
SHA1: 651f14d5a5e0ecb974a60c0f43b1d2006323fb09
MD5: 82ce2363f7ddc620b9c255d35833118f
CRC32: 290f8e33
SHA256: 7cb849885f5f7acefa660675731ed40471144541b809ea62e43e146d2c6be355

Variants (7)

`megacd_v100g_jp.bin` 128.0 KB

On the setup's list: EmuDeck
Packed for its emulators by: MCD_jp_100g.bin: RetroBat
Emulators: BizHawk
Collection path: bios/Sega/Mega CD/.variants/megacd_v100g_jp.bin (download)
Catalogued: No-Intro [BIOS] Mega-CD (Japan) (Rev B).md
TOSEC Sega Mega-CD BIOS v1.00g (1991)(Sega)(JP)(en-ja).bin
SHA1: 6a40a5cec00c3b49a4fd013505c5580baa733a29
MD5: bc6ae4e1db01a2f349d9af392bf7e2bd
CRC32: 9bce40b2
SHA256: 7b68a0a062c5542ed326659fac563841feaeb799cbcdd479943e121419b89744

`megacd_v100l_jp.bin` 128.0 KB

On the setup's list: EmuDeck
Packed for its emulators by: MCD_jp_100l.bin: RetroBat
Emulators: BizHawk
Collection path: bios/Sega/Mega CD/.variants/megacd_v100l_jp.bin (download)
Catalogued: No-Intro [BIOS] Mega-CD (Japan) (Rev C).md
TOSEC Sega Mega-CD BIOS v1.00l (1991)(Sega)(JP)(en-ja).bin
SHA1: 0d5485e67c3f033c41d677cc9936afd6ad618d5f
MD5: 29ad9ce848b49d0f9cefc294137f653c
CRC32: f18dde5b
SHA256: 1ce099cabc5485240212566f33d377f6cd115b359e20b085dd63395f2b283e66

`megacd_v100o_jp.bin` 128.0 KB

On the setup's list: EmuDeck
Packed for its emulators by: MCD_jp_100o.bin: RetroBat
Emulators: BizHawk
Collection path: bios/Sega/Mega CD/.variants/megacd_v100o_jp.bin (download)
Catalogued: No-Intro [BIOS] Mega-CD (Japan) (Rev D).md
TOSEC Sega Mega-CD BIOS v1.00o (1991)(Sega)(JP)(en-ja).bin
SHA1: 9e1495e62b000e1e1c868c0f3b6982e1abbb8a94
MD5: cc049159d7e744c15eee080c241273b4
CRC32: 2ea250c0
SHA256: b09db1827cfdcaf442e74328bc1e170920a6bce1ea99dcda89ee00f23b6ef467

`megacd_v100s_jp.bin` 128.0 KB

On the setup's list: EmuDeck
Packed for its emulators by: MCD_jp_100s.bin: RetroBat
Emulators: BizHawk
Collection path: bios/Sega/Mega CD/.variants/megacd_v100s_jp.bin (download)
Catalogued: No-Intro [BIOS] Mega-CD (Japan) (Rev H).md
TOSEC Sega Mega-CD BIOS v1.00s (1991)(Sega)(JP)(en-ja).bin
SHA1: 230ebfc49dc9e15422089474bcc9fa040f2c57eb
MD5: a3ddcc8483b0368141adfd99d9a1e466
CRC32: 79f85384
SHA256: 37dec869e959bf04dcbebc1e8fa32ae3d3993d723f89997fc243fa2ab19a86e3

`segacd2_v211x_us.bin` 128.0 KB

On the setup's list: EmuDeck
Packed for its emulators by: SCD_m2_us_211x.bin: RetroBat
Emulators: BizHawk
Collection path: bios/Sega/Mega CD/.variants/segacd2_v211x_us.bin (download)
Catalogued: No-Intro [BIOS] Sega CD 2A (USA).md
TOSEC Sega CD Model 2 BIOS v2.11x (1993)(Sega)(US).bin
SHA1: 328a3228c29fba244b9db2055adc1ec4f7a87e6b
MD5: ecc837c31d77b774c6e27e38f828aa9a
CRC32: 2e49d72c
SHA256: 4acda6ced2951f4fc34b42cc08c7510b8edc1f716b17ce4f84920751a98b9204

`segacd_v100_us.bin` 128.0 KB

On the setup's list: EmuDeck
Packed for its emulators by: SCD_m1_us_100.bin: RetroBat
Emulators: BizHawk
Collection path: bios/Sega/Mega CD/.variants/segacd_v100_us.bin (download)
Catalogued: No-Intro [BIOS] Sega CD (USA).md
TOSEC Sega CD Model 1 BIOS v1.00 (1992)(Sega)(US).bin
SHA1: c5c24e6439a148b7f4c7ea269d09b7a23fe25075
MD5: 96ea588d647f2ab1f291279fc691663c
CRC32: e7e3afe2
SHA256: 779b09a46c25ae2b1493e0ec7e1aaf4b5963aa2e13b3aa1378b2ce5ccccca2e9

`segacdx_v221x_us.bin` 128.0 KB

On the setup's list: EmuDeck
Packed for its emulators by: GCDX_us_221x.bin: RetroBat
Emulators: BizHawk
Collection path: bios/Sega/Mega CD/.variants/segacdx_v221x_us.bin (download)
Catalogued: No-Intro [BIOS] Sega CDX (USA).md
TOSEC Sega Genesis CDX BIOS v2.21x (1994)(Sega)(US).bin
SHA1: 2b125c0545afa089b617f2558e686ea723bdc06e
MD5: baca1df271d7c11fe50087c0358f4eb5
CRC32: d48c44b5
SHA256: 559a2914e18b91b772629a3088ebecfd34128ed9880fc31c286add7f76a6a8f6

Next steps

Sega, every section
Get your files, for the setup you play on
When a game does not start
Every emulator, and the files each one reads
Every hash of these files, as JSON

Data as of 24 October 2026.

Sega: Mega CD

Files

us_scd2_9306.bin 128.0 KB

MCD_eu_100.bin 128.0 KB

eu_mcd2_9306.bin 128.0 KB

MCD_jp_100p.bin 128.0 KB

jp_mcd2_921222.bin 128.0 KB

eu_mcd2_9303.bin 128.0 KB

SegaCDBIOS9303.bin 128.0 KB

bios_CD_U.bin 128.0 KB

jp_mcd1_9112.bin 128.0 KB

US Sega CD 2 (Region Free) 930601 l_oliveira.bin 128.0 KB

[BIOS] WonderMega (Japan) (En).bin 128.0 KB

cart.brm 512.0 KB No reader

MCD_aiwa_jp_211c.bin 128.0 KB

MCD_eu_221.bin 128.0 KB

MCD_jp_111b.bin 128.0 KB

MCD_jp_beta.bin 128.0 KB

MCD_jp_reva.bin 128.0 KB

MM_eu_221x.bin 128.0 KB

WM_jp_m2.bin 128.0 KB

XEye_us.bin 128.0 KB

megacd_v100g_jp.bin 128.0 KB

megacd_v100l_jp.bin 128.0 KB

megacd_v100o_jp.bin 128.0 KB

megacd_v100s_jp.bin 128.0 KB

segacd2_v211x_us.bin 128.0 KB

segacd_v100_us.bin 128.0 KB

segacdx_v221x_us.bin 128.0 KB