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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

    Confused on Multi Disc Games

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    retroarch
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    • mituM
      mitu Global Moderator
      last edited by

      For multi-disc games, I don't think a single .zip file would work - but it depends on how the core implements loading of the files. I'm not familiar with lr-yabause, so I can't say if .zip loading is baked in.

      For multi-disc setups, a .m3u list is preferable, since it allows for easier disc switching and also because the save files will have the same name and will not depend on disc name. If you also want compression, most Libretro cores have .chd support, so you can convert the .cue + .bin (s) disc to a single .chd file and create a m3u playlist with them.

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      • quicksilverQ
        quicksilver
        last edited by

        Multi-disc ps1 .pbp files also seem to work for disc switching as well

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        • A
          AlphaBetaPie
          last edited by AlphaBetaPie

          Thanks everyone. Let me ask this.

          If I was wanting to just simplify the whole process (and I didn't mind having some multidisc games having more than on entry in my EmulationStation menu), could I just have the one save file saved on my Pie, then when I get to the end of disc one, back out to the ES menu, select disc two from the main list and pick up from there? That seems like a pretty quick and easy fix. Is that do-able? Would it work as well as any other method?

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          • Z
            Zering
            last edited by

            As far as I know you can't do that exactly, but you can quit ES, copy your save, change its filename to match Disc 2, then boot Disc 2 directly from ES. At least on PS1.

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            • mituM
              mitu Global Moderator
              last edited by

              One of the advantages of using an m3u file is that the save (save state or game save file) is per-game, and not per-disc. The new version of RetroArch also remembers which disc you had inserted last and loads it automatically (when using an m3u file). As far as saves are concerned, using separate discs will be more cumbersome and confusing.

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              • A
                AlphaBetaPie
                last edited by AlphaBetaPie

                Thanks for all the great help so far. Been toying with this over the weekend. Not got it perfect yet, but making progress. Still having some issues, so here the breakdown thus far.

                So I took a two disc Saturn game as a test (in this case it was Street Fighter Collection), which had four discs:

                Street Fighter Collection (Disc 1 of 2) (USA) (DW0470) <====This is a Bin File
                Street Fighter Collection (Disc 1 of 2) (USA) (DW0470)<====This is a Cue File
                Street Fighter Collection (Disc 2 of 2) (USA) (DW0470)<====This is a Bin File
                Street Fighter Collection (Disc 2 of 2) (USA) (DW0470)<====This is a Cue File

                It said to rename the cue files to .CD1 and .CD2. I added those extensions to the end of the file names, and created a text file with the following text in it:

                Street Fighter Collection (Disc 1 of 2) (USA) (DW0470).CD1
                Street Fighter Collection (Disc 2 of 2) (USA) (DW0470).CD2

                I changed around some things in my XML file and my es_systems so it would read/load the .m3u. But it still just crashes back to the main system (the emulator would play the first disc before when I just loaded it as a .zip).

                I also tried rename the actually file extension from .cue to .CD1 in the FTP file manager, as I was able to see the real file name extension there. But not sure what might be a wrong here. I have these four disc files and the .m3u right in the root of my roms/saturn folder. Any thoughts on what might be wrong?

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                • I
                  IyonUK @AlphaBetaPie
                  last edited by

                  @AlphaBetaPie said in Confused on Multi Disc Games:

                  It said to rename the cue files to .CD1 and .CD2. I added those extensions to the end of the file names

                  Did your remove the cue extension? It seems that you’re saying you added the CDx to the end.

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                  • A
                    AlphaBetaPie
                    last edited by

                    Yes, I didn't at first, but then I figured out how to replace it all together. Still not working. Here are some screenshots of my setup, if that helps...

                    1.PNG 2.PNG 3.PNG 4.PNG

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                    • I
                      IyonUK @AlphaBetaPie
                      last edited by

                      @AlphaBetaPie

                      Is there anything useful in the runcommand.log? Which I think is in /tmp or in /dev/shm

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                      • mituM
                        mitu Global Moderator @AlphaBetaPie
                        last edited by

                        @AlphaBetaPie What emulator are you using ?

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                        • P
                          pscotto1234
                          last edited by pscotto1234

                          The method described in psx section doesn’t work in flycast, maybe it’s the same with psx emulator.
                          I solved renaming with .CHD extension. For example: shenmue is a 4 disc game and I renamed them in
                          Shenmue Disc 1.CHD
                          Shenmue Disc 2.CHD
                          Shenmue Disc 3.CHD
                          Shenmue Disc 4.CHD
                          and I made .m3u file.

                          Single discs have .chd extension so I can hide .CHD file just modifying es_system.cfg
                          This way works fine form me.
                          For psx multigame I used PBP format. You can create a single PBP from a multidisc game.

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                          • A
                            AlphaBetaPie
                            last edited by AlphaBetaPie

                            I'm testing the PSX version of this method described in the walkthrough from the link above, just to get some clarity before trying to fix it on Saturn. So far so good getting it to load in the PSX core, except I don't know how to change discs. If I go into the quick menu under disc control, it lets me cycle disc 1, 2 or 3....but then what? How do I get it to swap the disc? None of my commands are working after I change the disc number. If I back out, it just puts me back at my normal game that was already loaded. What am I doing wrong there?

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                            • mituM
                              mitu Global Moderator
                              last edited by

                              Depending on your RetroArch version, the disc control menus are different. Which version are you using ?

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                              • A
                                AlphaBetaPie @mitu
                                last edited by

                                @mitu said in Confused on Multi Disc Games:

                                Depending on your RetroArch version, the disc control menus are different. Which version are you using ?

                                Not 100% sure, which ever one comes default in the retropie-4.5.1-rpi2_rpi3.img file I used. The RetroArch menu says the following (when launching the PSX emulator):

                                build date feb 4 2019
                                git version: 9750719
                                1.7.6 - PCSX-ReARMed r22 cabd885

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                                • mituM
                                  mitu Global Moderator
                                  last edited by

                                  For older versions, I think the documentation is still accurate - https://retropie.org.uk/docs/Playstation-1/#m3u-playlist-for-multi-disc-games. Newer version have an easier menu, where it know if you need to insert or eject a disk. I recommend updating the retroarch package for the new version and also update the lr-pcsx-rearmed core.

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                                  • A
                                    AlphaBetaPie @mitu
                                    last edited by

                                    @mitu Yeah, I actually found a YouTube video that worked, right after I posted the above update. The issue is, you have to cycle the tray (like your opening it first), then switch discs, then cycle it again to close it. This is all done virtualy, and I have on screen text notices turned off. So it wasn't telling me anything. This video is very help for anyone that needs it. I will play around with Saturn now and see if I can get it to work. Will update soon.

                                    https://www.google.com/search?rls=com.microsoft:en-US:IE-Address&q=how+to+swap+disk+in+psx+retropie&sa=X&ved=2ahUKEwiF0rOHnI7pAhXPo54KHTOSAk0Q7xYoAHoECAwQKw&biw=1638&bih=584&dpr=1.56#kpvalbx=_QsGpXuMMyYW1Brmkn0A25&spf=1588183366614

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                                    • mituM
                                      mitu Global Moderator
                                      last edited by

                                      @AlphaBetaPie said in Confused on Multi Disc Games:

                                      This is all done virtualy, and I have on screen text notices turned off. So it wasn't telling me anything.

                                      That's why it's easier in the new version, instead of a single 'Cycle Tray Status' there are explicit 'Eject' or 'Insert' labels so you know the state of the virtual 'cdrom tray'.

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                                      • A
                                        AlphaBetaPie @mitu
                                        last edited by AlphaBetaPie

                                        @mitu said in Confused on Multi Disc Games:

                                        @AlphaBetaPie said in Confused on Multi Disc Games:

                                        This is all done virtualy, and I have on screen text notices turned off. So it wasn't telling me anything.

                                        That's why it's easier in the new version, instead of a single 'Cycle Tray Status' there are explicit 'Eject' or 'Insert' labels so you know the state of the virtual 'cdrom tray'.

                                        Oh, I see. I guess I'm a bit confused on my version status. I thought that was the latest image version you could use. But looks like v4.6 – released April 28, 2020 just came out yesterday. I have a build going and can't do a fresh install, so what would be the easiest way to update everything I currently have without losing all my progress (namely RetroArch and all the emulators)?

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

                                          @AlphaBetaPie You can always update your RetroPie version and/or packages - https://retropie.org.uk/docs/Updating-RetroPie/#using-the-retropie-setup-script - without re-installing a new image.

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                                          • A
                                            akamming @AlphaBetaPie
                                            last edited by

                                            @AlphaBetaPie

                                            Just a hint: I now have several multi disc games. I am using the latest retropie version (updated using the retropie setup script) and using the retroarch menu (settings/input/hotkey binds) i assigned hotkeys to the actions "Disk Eject toggle", "disk next" and "disk prev". This way i can change disks easiliy when i am in a game, without going through the retroach menu's...

                                            I also for you. I see in you gamelist.xml you have art assigned to the m3u entry in emulationstation. How did you scrape this? I have an issue that everytime i run skyscraper, my artwork entries for m3u files are removed from the gamelist.xml ...

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