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    SOLVED SegaCD (MegaCD) - CHD files support

    Emulator Arcade/PC/Console
    segacd megacd chd
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    • FreemanQC
      FreemanQC
      Themer
      last edited by

      Hi everyone, I can't find any information on internet about it but I would really like to know how to activate the support for the CHD files in the SegaCD Libretro emulator.

      I know the core lr-genesis-plus-gx is compatible with CHD game files as stated on this retropie topic here : https://retropie.org.uk/forum/topic/15751/sega-cd-roms-best-practices/3

      I tried adding .chd and .CHD to the es_systems.cfg configuration file but no luck I get a black screen when launching a game and then it goes back to the game list.

      CHD files saves up to 50% of the space and is much more convenient as it only have one file instead of a bin and cue sheet files.

      Thanks for helping me! 🙂

      1 Reply Last reply Reply Quote 0
      • acris
        acris last edited by acris

        Hello
        CHD support will be added in a future release for the cores who will support it

        By default picodrive is the emulator for SegaCD, the core doesn't support chd file.
        https://docs.libretro.com/library/picodrive/

        you need to use genesis
        https://docs.libretro.com/library/genesis_plus_gx/

        1 Reply Last reply Reply Quote 0
        • FreemanQC
          FreemanQC
          Themer
          last edited by FreemanQC

          Hi acris and thanks for your message. Is there an ETA of this release?

          Also is there a manual way to do the core update myself manually?

          Thanks a lot!

          abunille 1 Reply Last reply Reply Quote 0
          • abunille
            abunille @FreemanQC last edited by abunille

            @freemanqc

            Good Morning,

            You can change the emulator and the core directly in EmulationStation:

            • Select ANY game within the Sega CD system
            • Press SELECT and choose EDIT METADATA
            • There you will find on top of the list the option to choose the emulator and core of your choice.

            To change all segacd games to genesis plus gx go to the advanced emulator configuration

            EDIT:
            I forgot to say that you need another (or renamed) BIOS for Sega CD with Genesis Plus GX.
            Example for playing US games:
            If you have the us_scd2_9306.bin for playing with PicoDrive.....
            Make a copy of this file and rename it to bios_CD_U.bin.
            Copy this renamed file back to BIOS folder.
            Try it with EU and Japan files also (rename to bios_CD_E.bin and bios_CD_J.bin).

            If it wont work with EU and Japan, search for these bios files:
            Japan= bios_CD_J.bin with md5 278a9397d192149e84e820ac621a8edd
            Europe= bios_CD_E.binwith md5 e66fa1dc5820d254611fdcdba0662372

            awaiting your feedback 😉

            Wenn ihre Frage beantwortet wurde:
            Themen-Werkzeuge -> ask as question + Themen-Werkzeuge -> mark as Solved

            Bei hilfreichen Antworten darf man den jeweiligen Beitrag auch gerne positiv bewerten ;)

            1 Reply Last reply Reply Quote 0
            • FreemanQC
              FreemanQC
              Themer
              last edited by

              Will this play the chd files?

              abunille 1 Reply Last reply Reply Quote 0
              • abunille
                abunille @FreemanQC last edited by

                @freemanqc

                Try it out 😉

                Wenn ihre Frage beantwortet wurde:
                Themen-Werkzeuge -> ask as question + Themen-Werkzeuge -> mark as Solved

                Bei hilfreichen Antworten darf man den jeweiligen Beitrag auch gerne positiv bewerten ;)

                rommel1940 1 Reply Last reply Reply Quote 0
                • FreemanQC
                  FreemanQC
                  Themer
                  last edited by acris

                  @NeeeeB Ok well I would like to know if chd's made from latest version of chdman with v5 gzip compression are compatible? I know they aren't on Bxxx

                  1 Reply Last reply Reply Quote 0
                  • Gaetan
                    Gaetan Theme moderator
                    Tester
                    Themer
                    last edited by

                    So, did it work ?

                    Boards : Rpi3 B, Rpi3 B+, Odroid xu4
                    Controllers : Ps3 dualshock, 8bitdo SFC30 pro, Snes wired controller
                    Case : Superpi case Retroflag

                    1 Reply Last reply Reply Quote 0
                    • FreemanQC
                      FreemanQC
                      Themer
                      last edited by

                      @abunille said in SegaCD (MegaCD) - CHD files support:

                      EDIT

                      Thanks a lot it works like a charm 🙂

                      rommel1940 1 Reply Last reply Reply Quote 0
                      • rommel1940
                        rommel1940 last edited by

                        Can anybody help me, my chd roms are not showing up in my rom folder.

                        1 Reply Last reply Reply Quote 0
                        • rommel1940
                          rommel1940 @FreemanQC last edited by

                          @freemanqc how did you make the roms show up in emulation station, I added them to my roms folder and there not showing up, I did everything else listed above. It will play normal bin/cue files fine, but I have a complete chd rom set.

                          FreemanQC 1 Reply Last reply Reply Quote 0
                          • rommel1940
                            rommel1940 @abunille last edited by

                            @abunille why aren't my chd files showing up in emulation station, there in my sega cd rom folder. Thank for any help.

                            1 Reply Last reply Reply Quote 0
                            • FreemanQC
                              FreemanQC
                              Themer
                              @rommel1940
                              last edited by

                              @rommel1940 You need to edit the es_system.cfg file. Find the emulator segacd and where you see the line with supported file types just add .chd and .CHD

                              Like that the system will check for this type of file and find the chd iso. If you've added the correct bios with the correct md5 and correct name they will launch and play just perfectly.

                              Have fun 🙂

                              1 Reply Last reply Reply Quote 0
                              • Substring
                                Substring last edited by

                                chd for segacd will be in the next release

                                Former dev - Please reply with @substring so that i am notified when you answer me
                                Ex dev - Merci de me répondre en utilisant @substring pour que je sois notifé

                                rommel1940 1 Reply Last reply Reply Quote 0
                                • rommel1940
                                  rommel1940 @Substring last edited by

                                  @substring how come the previous poster says they got it to work?

                                  Substring 1 Reply Last reply Reply Quote 0
                                  • Substring
                                    Substring @rommel1940 last edited by

                                    @rommel1940 as he explained, just need to edit a file

                                    Former dev - Please reply with @substring so that i am notified when you answer me
                                    Ex dev - Merci de me répondre en utilisant @substring pour que je sois notifé

                                    rommel1940 1 Reply Last reply Reply Quote 0
                                    • rommel1940
                                      rommel1940 @Substring last edited by

                                      @substring sorry nust seen that, where is that file and how do I acess it. Thanks

                                      Substring 1 Reply Last reply Reply Quote 0
                                      • Substring
                                        Substring @rommel1940 last edited by

                                        @rommel1940 see https://forum.recalbox.com/post/90734

                                        The file is in /recalbox/share_init/system/.emulationstation

                                        You must first mount -o remount, rw /

                                        Former dev - Please reply with @substring so that i am notified when you answer me
                                        Ex dev - Merci de me répondre en utilisant @substring pour que je sois notifé

                                        rommel1940 1 Reply Last reply Reply Quote 0
                                        • rommel1940
                                          rommel1940 @Substring last edited by

                                          @substring you mean put tne sdcard in my computer?

                                          Substring 1 Reply Last reply Reply Quote 0
                                          • Substring
                                            Substring @rommel1940 last edited by

                                            @rommel1940 if you're asking such questions, I guess you'd better wait for the update

                                            Former dev - Please reply with @substring so that i am notified when you answer me
                                            Ex dev - Merci de me répondre en utilisant @substring pour que je sois notifé

                                            rommel1940 1 Reply Last reply Reply Quote 0
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