@Nash

I don't know what could be wrong with your setup. I have multi-disk games with extensions .bin, .cue, .chd, .dsk, and .rvz, and disk swapping is working correctly in RetroArch. I have created .m3u files for all of them.

Example of a PSX game:

Chrono Cross (Disc 1).bin .Chrono Cross (Disc 1).cue Chrono Cross (Disc 2).bin .Chrono Cross (Disc 2).cue

.m3u file:

.Chrono Cross (Disc 1).cue .Chrono Cross (Disc 2).cue

And sleve_mcdichael suggestion is a very good solution that I didn't know

I haven't use .chd files yet. Are a game with .chd format require more processing resources to run, than bin/cue format?

@mitu

I try 3 games Final Fantasy VIII, XI and Metal Gear Solid with CD Access Method (Restart) set to synchronous. All games are with .M3U files and .CDx extentions . I use the new disk control menu.

-All games are booting fine
-I start all games from CD2 and when the game ask for CD1 the changes was succesfully
-I use a save file in FF 8 and when the game ask for CD2 the change was succesfully
-I try 3 times to change the disk without the game ask for this (it's not a normal condition) and i had a lock-up and 2 times a black screen(i choose reset from retroarch to get out from this)

Generally, the fixed version working fine without the previous lock-ups during exit and during disk swapping.

Thanks again!

Ok.
I read it to mean change the file name in just the m3u file.

@simongeoghegan
As long as you take a backup of the .srm you needn't worry about anything.
The network share is the easiest and it only shares user data folders for retropie like: roms bios and configs.

The folder will be displayed like a windows directory in explorer, the local network doesn't need any configuration, it could be either through a router or directly connected through the ethernet.