@VTHokiEE
I think it depends on which emulator made those save files. Like if you did a save state with lr-vba-next and try to load it with lr-gpsp, it will not work but go back to lr-vba-next and it can read them again.

Oh man, this is the second time in one week someone asked this question. Takes like 2 seconds on YouTube to find those sites man.

@synack, The Pi works fine when I put my Raspbian card in and boot it up, so I think the Pi is fine.

@Fastcat4 First off, I appreciate people being new to these and not getting their heads around it. However, the info we asked for, and guides and wiki we pointed you towards are all in the stickied "read this first post" at the top of every page of the forum.

This includes all links to the RetroPie wiki which we have been directing you towards.

It also has a table in it to copy and paste to provide accurate details as to your setup and build.

I don't believe you have read that post nor the wiki anything past a cursory glance.

As before, I diagnose a corrupt SD card. I'd check for a compatible card (use Google to find the list), buy it, then read and follow the wiki to try and rebuild.

Never pull any memory cards when data may be being written to it. This applies for all devices, not just raspberry pis.

@markyh444 There have been one or two occasions I thought I might be able to save a hard working developer/mod a couple of minutes, but I'm way too nervous to do it!! Believe me, plenty of play and learning to do yet;))

@BuZz thank you

Never mind... There's a "mode" switch on the controller that needs to be toggled. Putting it here for posterity.

@BuZz
Thanks a lot, it's working now! :)

@caver01 Yea i only have a 2 player setup atm but you got the gist.

@Swizz You can do all that via RetroPie without having to reboot - RetroPie is just a software package on top of Raspbian (or another distro).

Berryboot shares a kernel between all distros, and /boot/config.txt management is slightly different so configuration is different (The different kernel version from Raspbian can cause issues specific to Berryboot). Although we provide a Berryboot image we don't really support it.

@caver01
The 106 roms in question don't work in AdvMame .94 either :-(

Good idea about switching the wires on the trackball. I'll take a look and see if it's an easy fix - then it will be right for everything going forward. Thanks for the idea!

Because it's close to what I'm using and I can't find help anywhere :(

@darkmenace i'm afraid you can't adjust it without pulling the repository, changing the code and recompiling. not that you'd want to - it delays it but the sound gets way out of sync. it's arguably worse than the distortion.

Let's stick to the other thread for anything else: https://retropie.org.uk/forum/topic/2612/mortal-kombat-2-3-umk3-audio

@dudleydes
Thanks a lot, added /home/pi/RetroPie/BIOS/mame2003/samples/
in /opt/retropie/configs/mame-mame4all/mame.cfg and it works fine!

@Rabidtrout actually @dudleydes already said to do this earlier in the thread. :)

Please open a new issue for an unrelated problem so it's easier for people to find when searching etc.