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    Please do not post a support request without first reading and following the advice in https://retropie.org.uk/forum/topic/3/read-this-first

    Sega CD games not loading

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    sega cd
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    • M
      MajorOCD
      last edited by

      I'm sure this is an old topic and I have searched many forums and sites and not found a solution.

      I am running the latest Retropie as of today and I have the correct BIOS files for Sega CD (verified the MD5 Sums) but they still won't boot.

      When I try to launch any game, it goes to a black screen for a few seconds, then back to the games list.

      I have the following files in my BIOS folder and the MD5 sums are verified:
      [BIOS] Sega CD (USA) (v1.10).md
      BIOS_CD_U.BIN
      us_scd1_9210.bin

      Any help would be appreciated.

      Raspberry Pi 400
      retropie 4.7.7 rpi4_400
      Built From Pre made SD Image on RetroPie website (retropie-buster-4.7.1-rpi4_400.img.gz)
      External 500 GB SSD Hard Drive
      Official Raspberry Pi 400 Power Supply
      Logitech Dual Action Controller

      IanDaemonI lostlessL 2 Replies Last reply Reply Quote 0
      • IanDaemonI
        IanDaemon @MajorOCD
        last edited by IanDaemon

        @majorocd Are your ROMs from a different region than your BIOS? Bad ROM? Have you tried putting different BIOS versions in the directory just in case?

        • 5 Favorite Arcade Games in MAME
        • Cocktail Cabinet Games
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        M 1 Reply Last reply Reply Quote 0
        • M
          MajorOCD @IanDaemon
          last edited by

          @iandaemon
          I am in the U.S. and they are U.S. BIOS files.
          As far as I know, the games are U.S. versions. At least it says so in the file names.

          I have tried multiple different BIOS files in the BIOS directory.
          Do you mean trying ones from different regions (like Japan)?

          Raspberry Pi 400
          retropie 4.7.7 rpi4_400
          Built From Pre made SD Image on RetroPie website (retropie-buster-4.7.1-rpi4_400.img.gz)
          External 500 GB SSD Hard Drive
          Official Raspberry Pi 400 Power Supply
          Logitech Dual Action Controller

          IanDaemonI 1 Reply Last reply Reply Quote 0
          • mituM
            mitu Global Moderator
            last edited by

            Please add some info about your setup as, detailed in https://retropie.org.uk/forum/topic/3/read-this-first.

            A verbose log from running the emulator should show if the BIOS files are found and loaded, you might want to enable that and check the log.

            M 1 Reply Last reply Reply Quote 1
            • lostlessL
              lostless @MajorOCD
              last edited by

              @majorocd check if the file name in the cue matches the bin file. That might be an issue.

              M 1 Reply Last reply Reply Quote 0
              • M
                MajorOCD @mitu
                last edited by

                @mitu
                I am using a Raspberry Pi 400 with an external 500 GB SSD drive.
                I also have the official Raspberry Pi power supply.

                I looked at the "verbose log" page, but I don't see an option to "Launch with verbose logging". How do I set it up to do verbose logging?

                Raspberry Pi 400
                retropie 4.7.7 rpi4_400
                Built From Pre made SD Image on RetroPie website (retropie-buster-4.7.1-rpi4_400.img.gz)
                External 500 GB SSD Hard Drive
                Official Raspberry Pi 400 Power Supply
                Logitech Dual Action Controller

                mituM 1 Reply Last reply Reply Quote 0
                • M
                  MajorOCD @lostless
                  last edited by

                  @lostless
                  I am aware of the issues with the .cue / .bin files. I had already verified that the .cue files had the correct entries for the .bin files.

                  But thank you for pointing this out. I have already seen this issue with a lot of Playstation files and fixed them.

                  Raspberry Pi 400
                  retropie 4.7.7 rpi4_400
                  Built From Pre made SD Image on RetroPie website (retropie-buster-4.7.1-rpi4_400.img.gz)
                  External 500 GB SSD Hard Drive
                  Official Raspberry Pi 400 Power Supply
                  Logitech Dual Action Controller

                  lostlessL 1 Reply Last reply Reply Quote 0
                  • mituM
                    mitu Global Moderator @MajorOCD
                    last edited by mitu

                    @majorocd said in Sega CD games not loading:

                    I looked at the "verbose log" page, but I don't see an option to "Launch with verbose logging". How do I set it up to do verbose logging?

                    Did you disable the Runcommand launch menu ? As explained on the doc page, when launching a game, press a button and the launch menu will pop-up, allowing you to select "Launch with verbose logging".
                    What emulator are you using to launch the game ?

                    M 1 Reply Last reply Reply Quote 1
                    • IanDaemonI
                      IanDaemon @MajorOCD
                      last edited by IanDaemon

                      @majorocd There are multiple revisions of the Sega CD BIOS for the U.S.. (e.g. G1-the drawer type underneath the Genesis, G2-the top loader on the side on the Genesis, the CDX) Each had a different U.S. BIOS file. (just a reminder, that tripped me up)

                      • 5 Favorite Arcade Games in MAME
                      • Cocktail Cabinet Games
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                      1 Reply Last reply Reply Quote 0
                      • lostlessL
                        lostless @MajorOCD
                        last edited by

                        @majorocd make sure bios is on the external.

                        1 Reply Last reply Reply Quote 0
                        • M
                          MajorOCD @mitu
                          last edited by

                          @mitu
                          I did not disable the Runcommand launch menu.
                          I went into the config and verified that it is enabled.
                          When I hit a button right after launch, it did not go into the launch menu.

                          Retropie by default has both lr-genesis-plus-gx and lr-picodrive installed.
                          I uninstalled lr-genesis-plus-gx and tried it again. It brought up a launch menu, but the only option was to choose which emulator (only choice, of course being lr-picodrive).
                          It still wouldn't launch the game.

                          I then uninstalled lr-picodrive and reinstalled lr-genesis-plus-gx from binary.
                          Now, when I hit a button, it brings up the full launch menu.
                          It still wouldn't launch the game.

                          This is the runcommand.log

                          Parameters: 
Executing: /opt/retropie/emulators/retroarch/bin/retroarch -L /opt/retropie/libretrocores/lr-genesis-plus-gx/genesis_plus_gx_libretro.so --config /opt/retropie/configs/segacd/retroarch.cfg "/home/pi/RetroPie/roms/segacd/Adventures of Batman and Robin, The (USA).cue" --verbose --appendconfig /dev/shm/retroarch.cfg
[INFO] RetroArch 1.8.8 (Git 9552f87)
[INFO] Redirecting save file to "/home/pi/RetroPie/roms/segacd/Adventures of Batman and Robin, The (USA).srm".
[INFO] Redirecting save state to "/home/pi/RetroPie/roms/segacd/Adventures of Batman and Robin, The (USA).state".
[INFO] === Build =======================================
[INFO] Capabilities:  NEON VFPv3 VFPv4
[INFO] Built: Nov  2 2020
[INFO] Version: 1.8.8
[INFO] Git: 9552f87
[INFO] =================================================
[INFO] Loading dynamic libretro core from: "/opt/retropie/libretrocores/lr-genesis-plus-gx/genesis_plus_gx_libretro.so"
[INFO] [Overrides] no core-specific overrides found at /home/pi/.config/retroarch/config/Genesis Plus GX/Genesis Plus GX.cfg.
[INFO] [Overrides] no content-dir-specific overrides found at /home/pi/.config/retroarch/config/Genesis Plus GX/segacd.cfg.
[INFO] [Overrides] no game-specific overrides found at /home/pi/.config/retroarch/config/Genesis Plus GX/Adventures of Batman and Robin, The (USA).cfg.
[INFO] [Environ]: GET_LANGUAGE: "0".
[INFO] [Environ]: RETRO_ENVIRONMENT_SET_CORE_OPTIONS_INTL.
[INFO] [Environ]: SET_CONTROLLER_INFO.
[INFO] [Environ]: SET_INPUT_DESCRIPTORS:
[INFO] Core requested VFS version >= v1, providing v3
[INFO] [Remaps]: remap directory: /opt/retropie/configs/segacd/
[INFO] Redirecting save file to "/home/pi/RetroPie/roms/segacd/Adventures of Batman and Robin, The (USA).srm".
[INFO] Redirecting save state to "/home/pi/RetroPie/roms/segacd/Adventures of Batman and Robin, The (USA).state".
[INFO] [Environ]: PERFORMANCE_LEVEL: 1.
[INFO] [Environ]: GET_LOG_INTERFACE.
[INFO] [Environ]: PERFORMANCE_LEVEL: 7.
[INFO] Content loading skipped. Implementation will load it on its own.
[INFO] [Environ]: SET_PIXEL_FORMAT: RGB565.
[libretro INFO] Frontend supports RGB565 - will use that instead of XRGB1555.
[WARN] SYSTEM DIR is empty, assume CONTENT DIR /home/pi/RetroPie/roms/segacd/Adventures of Batman and Robin, The (USA).cue
[INFO] [Environ]: SYSTEM_DIRECTORY: "/home/pi/RetroPie/roms/segacd/".
[INFO] [Environ]: RETRO_ENVIRONMENT_SET_CORE_OPTIONS_DISPLAY.
[INFO] [Environ]: RETRO_ENVIRONMENT_SET_CORE_OPTIONS_DISPLAY.
[INFO] [Environ]: RETRO_ENVIRONMENT_SET_CORE_OPTIONS_DISPLAY.
[INFO] [Environ]: RETRO_ENVIRONMENT_SET_CORE_OPTIONS_DISPLAY.
[INFO] [Environ]: RETRO_ENVIRONMENT_SET_CORE_OPTIONS_DISPLAY.
[INFO] [Environ]: RETRO_ENVIRONMENT_SET_CORE_OPTIONS_DISPLAY.
[INFO] [Environ]: RETRO_ENVIRONMENT_SET_CORE_OPTIONS_DISPLAY.
[INFO] [Environ]: RETRO_ENVIRONMENT_SET_CORE_OPTIONS_DISPLAY.
[INFO] [Environ]: RETRO_ENVIRONMENT_SET_CORE_OPTIONS_DISPLAY.
[INFO] [Environ]: RETRO_ENVIRONMENT_SET_CORE_OPTIONS_DISPLAY.
[INFO] [Environ]: RETRO_ENVIRONMENT_SET_CORE_OPTIONS_DISPLAY.
[INFO] [Environ]: RETRO_ENVIRONMENT_SET_CORE_OPTIONS_DISPLAY.
[INFO] [Environ]: RETRO_ENVIRONMENT_SET_CORE_OPTIONS_DISPLAY.
[INFO] [Environ]: RETRO_ENVIRONMENT_SET_CORE_OPTIONS_DISPLAY.
[INFO] [Environ]: RETRO_ENVIRONMENT_SET_CORE_OPTIONS_DISPLAY.
[INFO] [Environ]: RETRO_ENVIRONMENT_SET_CORE_OPTIONS_DISPLAY.
[INFO] [Environ]: RETRO_ENVIRONMENT_SET_CORE_OPTIONS_DISPLAY.
[INFO] [Environ]: RETRO_ENVIRONMENT_SET_CORE_OPTIONS_DISPLAY.
[INFO] [Environ]: RETRO_ENVIRONMENT_SET_CORE_OPTIONS_DISPLAY.
[libretro INFO] Game Genie ROM should be located at: /home/pi/RetroPie/roms/segacd//ggenie.bin
[libretro INFO] Action Replay (Pro) ROM should be located at: /home/pi/RetroPie/roms/segacd//areplay.bin
[libretro INFO] Sonic & Knuckles (2 MB) ROM should be located at: /home/pi/RetroPie/roms/segacd//sk.bin
[libretro INFO] Sonic & Knuckles UPMEM (256 KB) ROM should be located at: /home/pi/RetroPie/roms/segacd//sk2chip.bin
[libretro INFO] Mega Drive TMSS BOOTROM should be located at: /home/pi/RetroPie/roms/segacd//bios_MD.bin
[libretro INFO] Game Gear TMSS BOOTROM should be located at: /home/pi/RetroPie/roms/segacd//bios.gg
[libretro INFO] Master System (PAL) BOOTROM should be located at: /home/pi/RetroPie/roms/segacd//bios_E.sms
[libretro INFO] Master System (NTSC-U) BOOTROM should be located at: /home/pi/RetroPie/roms/segacd//bios_U.sms
[libretro INFO] Master System (NTSC-J) BOOTROM should be located at: /home/pi/RetroPie/roms/segacd//bios_J.sms
[libretro INFO] Mega CD (PAL) BIOS should be located at: /home/pi/RetroPie/roms/segacd//bios_CD_E.bin
[libretro INFO] Sega CD (NTSC-U) BIOS should be located at: /home/pi/RetroPie/roms/segacd//bios_CD_U.bin
[libretro INFO] Mega CD (NTSC-J) BIOS should be located at: /home/pi/RetroPie/roms/segacd//bios_CD_J.bin
[libretro INFO] Mega CD (PAL) BRAM is located at: /home/pi/RetroPie/roms/segacd//scd_E.brm
[libretro INFO] Sega CD (NTSC-U) BRAM is located at: /home/pi/RetroPie/roms/segacd//scd_U.brm
[libretro INFO] Mega CD (NTSC-J) BRAM is located at: /home/pi/RetroPie/roms/segacd//scd_J.brm
[libretro INFO] Sega/Mega CD RAM CART is located at: /home/pi/RetroPie/roms/segacd//cart.brm
[libretro ERROR] Unable to open CD BIOS: /home/pi/RetroPie/roms/segacd//bios_CD_U.bin.
[ERROR] Failed to load content
[INFO] Content ran for a total of: 00 hours, 00 minutes, 00 seconds.
[INFO] Unloading game..
[INFO] Unloading core..
[INFO] Unloading core symbols..
[INFO] [Core Options]: Saved core options file to "/home/pi/.config/retroarch/config/Genesis Plus GX/Genesis Plus GX.opt"
[INFO] [Video]: Does not have enough samples for monitor refresh rate estimation. Requires to run for at least 4096 frames.

                          Again, thank you for your patience and help.

                          Raspberry Pi 400
                          retropie 4.7.7 rpi4_400
                          Built From Pre made SD Image on RetroPie website (retropie-buster-4.7.1-rpi4_400.img.gz)
                          External 500 GB SSD Hard Drive
                          Official Raspberry Pi 400 Power Supply
                          Logitech Dual Action Controller

                          mituM 1 Reply Last reply Reply Quote 0
                          • mituM
                            mitu Global Moderator @MajorOCD
                            last edited by mitu

                            The BIOS file is not found by the emulator:

                             [libretro ERROR] Unable to open CD BIOS: /home/pi/RetroPie/roms/segacd//bios_CD_U.bin.

                            because:

                            [WARN] SYSTEM DIR is empty, assume CONTENT DIR /home/pi/RetroPie/roms/segacd/Adventures of Batman and Robin, The (USA).cue

                            RetroArch looks up the BIOS files in the System Dir, which RetroPie sets - by default - to the bios folder where you copied your BIOS files. Did you use the 'Reset Configuration' option in RetroArch's menu ? This would explain why the BIOS folder was reset.

                            M 1 Reply Last reply Reply Quote 1
                            • M
                              MajorOCD @mitu
                              last edited by

                              @mitu
                              I don't recall if I used the 'Reset Configuration' option in RetroArch's menu.
                              How do I check to see if it is pointed to the correct folder?

                              Raspberry Pi 400
                              retropie 4.7.7 rpi4_400
                              Built From Pre made SD Image on RetroPie website (retropie-buster-4.7.1-rpi4_400.img.gz)
                              External 500 GB SSD Hard Drive
                              Official Raspberry Pi 400 Power Supply
                              Logitech Dual Action Controller

                              mituM 1 Reply Last reply Reply Quote 0
                              • mituM
                                mitu Global Moderator @MajorOCD
                                last edited by

                                @majorocd said in Sega CD games not loading:

                                How do I check to see if it is pointed to the correct folder?

                                It doesn't point to any folder ..

                                [WARN] SYSTEM DIR is empty, assume CONTENT DIR /home/pi/RetroPie/roms/segacd/Adventures of Batman and Robin, The (USA).cue

                                How did you install RetroPie ?

                                sirhenrythe5thS M 3 Replies Last reply Reply Quote 1
                                • sirhenrythe5thS
                                  sirhenrythe5th @mitu
                                  last edited by

                                  This post is deleted!
                                  1 Reply Last reply Reply Quote 0
                                  • M
                                    MajorOCD @mitu
                                    last edited by

                                    @mitu said in Sega CD games not loading:

                                    How did you install RetroPie ?

                                    I used Etcher to install the official Retropie image from https://retropie.org.uk to microsd

                                    Raspberry Pi 400
                                    retropie 4.7.7 rpi4_400
                                    Built From Pre made SD Image on RetroPie website (retropie-buster-4.7.1-rpi4_400.img.gz)
                                    External 500 GB SSD Hard Drive
                                    Official Raspberry Pi 400 Power Supply
                                    Logitech Dual Action Controller

                                    1 Reply Last reply Reply Quote 0
                                    • M
                                      MajorOCD @mitu
                                      last edited by

                                      @mitu
                                      Should I reinstall Retroarch?

                                      Raspberry Pi 400
                                      retropie 4.7.7 rpi4_400
                                      Built From Pre made SD Image on RetroPie website (retropie-buster-4.7.1-rpi4_400.img.gz)
                                      External 500 GB SSD Hard Drive
                                      Official Raspberry Pi 400 Power Supply
                                      Logitech Dual Action Controller

                                      mituM 1 Reply Last reply Reply Quote 0
                                      • mituM
                                        mitu Global Moderator @MajorOCD
                                        last edited by mitu

                                        @majorocd said in Sega CD games not loading:

                                        Should I reinstall Retroarch?

                                        Not sure if that would help, since you haven't said what you changed that reset the defaults. What you could try is to rename the configuration file for segacd (\\retropie\configs\segacd\retroarch.cfg) and then reinstall the lr-genesis-plus-gx emulator. The re-install would re-create the correct configuration file and you can then try again to see if the game works.

                                        M N 4 Replies Last reply Reply Quote 1
                                        • M
                                          MajorOCD @mitu
                                          last edited by

                                          @mitu said in Sega CD games not loading:
                                          (\\retropie\configs\segacd\retroarch.cfg)

                                          Sorry, I don't see this directory.

                                          Raspberry Pi 400
                                          retropie 4.7.7 rpi4_400
                                          Built From Pre made SD Image on RetroPie website (retropie-buster-4.7.1-rpi4_400.img.gz)
                                          External 500 GB SSD Hard Drive
                                          Official Raspberry Pi 400 Power Supply
                                          Logitech Dual Action Controller

                                          1 Reply Last reply Reply Quote 0
                                          • M
                                            MajorOCD @mitu
                                            last edited by

                                            @mitu
                                            I found it under /opt/retropie/configs/segacd

                                            Raspberry Pi 400
                                            retropie 4.7.7 rpi4_400
                                            Built From Pre made SD Image on RetroPie website (retropie-buster-4.7.1-rpi4_400.img.gz)
                                            External 500 GB SSD Hard Drive
                                            Official Raspberry Pi 400 Power Supply
                                            Logitech Dual Action Controller

                                            1 Reply Last reply Reply Quote 0
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