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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

    How Many Bios Do I Really Need?

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    • A
      AlphaBetaPie
      last edited by

      Putting together a list of systems I want for my next build, and I'm working on the CD based ones now. Thus far, I have PlayStation, Saturn (doesn't run great, but will load) and Sega CD. Being disc based, they obviously won't even launch without the proper bios (which I currently have). But I was wondering how far I should take this? I've never used bios for regular cart consoles before, but I think there are sets I can find for just about every system. Should I include bios for each system in the bios folder for improved compatibility in some way? Or is that really unnecessary (as I've never had issues in the past). But I don't mind, if it could make things run better/smoother overall.

      dankcushionsD 1 Reply Last reply Reply Quote 0
      • dankcushionsD
        dankcushions Global Moderator @AlphaBetaPie
        last edited by

        @alphabetapie each system's docs page tells you whether or not BIOS are supported/required. putting BIOS when the emulator does not support it is pointless.

        there is also this list: https://retropie.org.uk/docs/BIOS/

        A 1 Reply Last reply Reply Quote 1
        • A
          AlphaBetaPie @dankcushions
          last edited by

          @dankcushions said in How Many Bios Do I Really Need?:

          @alphabetapie each system's docs page tells you whether or not BIOS are supported/required. putting BIOS when the emulator does not support it is pointless.

          there is also this list: https://retropie.org.uk/docs/BIOS/

          Thanks, very helpful. I always noticed the per-console sections, but didn't realize it had the bio info there as well (you have to scroll right to see it).

          Looks like I'm good on bios as-is, as Saturn, PSX and Sega CD are the only ones I need. However, it did say that the NES emulators need disk bios. But I assume that's because they also emulator Famicon Discks? And if I'm just using regular American NES roms, I should treat that as an "optional" bio like the rest that list it this way?

          dankcushionsD 1 Reply Last reply Reply Quote 1
          • dankcushionsD
            dankcushions Global Moderator @AlphaBetaPie
            last edited by

            @alphabetapie said in How Many Bios Do I Really Need?:

            Looks like I'm good on bios as-is, as Saturn, PSX and Sega CD are the only ones I need. However, it did say that the NES emulators need disk bios. But I assume that's because they also emulator Famicon Discks? And if I'm just using regular American NES roms, I should treat that as an "optional" bio like the rest that list it this way?

            ya, that's right - see https://retropie.org.uk/docs/Nintendo-Entertainment-System/#bios - only required for FDS games

            A 1 Reply Last reply Reply Quote 1
            • A
              AlphaBetaPie @dankcushions
              last edited by

              @dankcushions said in How Many Bios Do I Really Need?:

              @alphabetapie said in How Many Bios Do I Really Need?:

              Looks like I'm good on bios as-is, as Saturn, PSX and Sega CD are the only ones I need. However, it did say that the NES emulators need disk bios. But I assume that's because they also emulator Famicon Discks? And if I'm just using regular American NES roms, I should treat that as an "optional" bio like the rest that list it this way?

              ya, that's right - see https://retropie.org.uk/docs/Nintendo-Entertainment-System/#bios - only required for FDS games

              Extremely helpful, as always! Thanks!

              1 Reply Last reply Reply Quote 2
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