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Sega CD

segacd

The Sega CD was an add-on to the Sega Mega Drive/Genesis. It was released in 1991.

Emulator Rom Folder Extension BIOS Controller Config
lr-genesis-plus-gx segacd .bin .chd .cue .iso .m3u bios_CD_U.bin, bios_CD_E.bin, bios_CD_J.bin /opt/retropie/configs/segacd/retroarch.cfg
lr-picodrive segacd .bin .chd .cue .iso .m3u us_scd1_9210.bin / us_scd2_9306.bin / SegaCDBIOS9303.bin / bios_CD_U.bin
eu_mcd1_9210.bin / eu_mcd2_9306.bin/ eu_mcd2_9303.bin / bios_CD_E.bin
jjp_mcd1_9112.bin / jp_mcd1_9112.bin / jp_mcd2_921222.bin / bios_CD_J.bin		 /opt/retropie/configs/segacd/retroarch.cfg

Emulators: lr-genesis-plus-gx, lr-picodrive

lr-genesis-plus-gx is recommended for the Pi 2/3 as it has better accuracy.

ROMS

Accepted File Extensions: .bin .chd .cue .iso, .m3u for multi-disc games.
Note: .bin files won't be displayed within Emulation Station, they will be referenced via the .cue.

Place your Sega CD ROMS (.chd .iso OR .bin AND .cue) in 

/home/pi/RetroPie/roms/segacd
If you don't have the corresponding .cue file in the same folder as your .bin file, your game may not have sound.

Multi-Disc games

For multi-disc games using .cue or .chd format, you can create a .m3u playlist to be able to easily change discs from the RetroArch's Disk Control menu.

To change the disc through RetroArch, from the "Quick Menu", enter "Disk Control", use the "Disk Cycle Tray Status" to open the virtual disk tray, change the disk number to the correct one, then use the "Disk Cycle Tray Status" to close the virtual disk tray.

Example playlist for Fahrenheit:

Folder Structure:

  • Fahrenheit (Disc 1).cue
  • Fahrenheit (Disc 1).bin
  • Fahrenheit (Disc 2).cue
  • Fahrenheit (Disc 2 - track1).bin
  • Fahrenheit (Disc 2 - track2).bin

Contents of the .m3u playlist

Fahrenheit (Disc 1).cue
Fahrenheit (Disc 2).cue

CHD Files

lr-genesis-plus-gx and lr-picodrive have support for the CHD (V1-V5) archive format. This format will save space and allow you to keep your Mega CD/Sega CD ROM folder tidy. See Creating CHDs from CD-ROMS.

  • Corpse Killer 32x version only (1 disc)
  • Dracula Unleashed (2 discs)
  • Fahrenheit (2 discs)
  • Ground Zero Texas (2 discs)
  • Night Trap (2 discs)
  • Penn & Teller - Smoke and Mirrors (2 disc)
  • Sherlock Holmes - Consulting Detective Volume II (2 discs)
  • Prize Fighter (2 discs) (can be played as individual discs in chd file format with lr-genesis-plus-gx)
  • Slam City with Scottie Pippen (4 discs) (non-32X version can be played as individual discs in chd file format with either lr-genesis-plus-gx or lr-picodrive; 32x version can be played as individual discs in chd file format only with lr-picodrive)
  • Supreme Warrior (2 discs, 32x version only)
  • Surgical Strike (1 disc, 32x version only)

BIOS

lr-picodrive

The BIOS filenames are: * for US games: us_scd1_9210.bin / us_scd2_9306.bin / SegaCDBIOS9303.bin / bios_CD_U.bin * for European games: eu_mcd1_9210.bin / eu_mcd2_9306.bin/ eu_mcd2_9303.bin / bios_CD_E.bin * for Japanese game: jp_mcd1_9112.bin / jp_mcd1_9112.bin / jp_mcd2_921222.bin / bios_CD_J.bin

Picodrive searches for multiple filenames for each type of Bios, detected based on the game loaded - i.e. loading an US game would have Picodrive look for one of us_scd1_9210.bin, us_scd2_9306.bin, SegaCDBIOS9303.bin, bios_CD_U.bin.

Place this lr-picodrive BIOS files in: 

/home/pi/RetroPie/BIOS

lr-genesis-plus-gx

The BIOS filenames are: * for US games: bios_CD_U.bin * for European games: bios_CD_E.bin * for Japanese game: bios_CD_J.bin

Place this lr-genesis-plus-gx BIOS file in 

/home/pi/RetroPie/BIOS
Video Guide using lr-genesis-plus-gx:

Checksums

lr-picodrive filename lr-Genesis-Plus-GX filename No-Intro filename md5sum
us_scd1_9210.bin / bios_CD_U.bin bios_CD_U.bin [BIOS] Sega CD (USA) (v1.10).md 2efd74e3232ff260e371b99f84024f7f
eu_mcd1_9210.bin / ios_CD_E.bin bios_CD_E.bin [BIOS] Mega-CD (Europe) (v1.00).md e66fa1dc5820d254611fdcdba0662372
jp_mcd1_9112.bin / bios_CD_J.bin bios_CD_J.bin [BIOS] Mega-CD (Asia) (v1.00S).md bdeb4c47da613946d422d97d98b21cda

Controls

lr-picodrive and lr-genesis-plus-gx utilise RetroArch configurations

Add custom retroarch controls to the retroarch.cfg file in

/opt/retropie/configs/segacd/retroarch.cfg
For more information on custom RetroArch controls see: RetroArch Configuration

6 button controller

See 6 button controller

3 Button Genesis/Mega Drive Controller

genesis

6 Button Genesis/Mega Drive Wireless Controller

sega_megadrive_6button_diagram

6 Button Genesis/Mega Drive ArcadePad Controller

sega_megadrive_6button_arcadepad_diagram