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M3U and Disk control¶
When you have a multi disk game, you can use a m3u file to specify each disk of the game and change them from the RetroArch Disk control interface.
A M3U file is a simple text file with one disk per line (see https://en.wikipedia.org/wiki/M3U).
Example : Alive (F).m3u
Alive (F) - Disk 1A.dsk
Alive (F) - Disk 1B.dsk
Path can be absolute or relative to the location of the M3U file.
When a game ask for it, you can change the current disk in the RetroArch 'Disk Control' menu :
Eject the current disk with 'Disk Cycle Tray Status'.
Select the right disk index.
Insert the new disk with 'Disk Cycle Tray Status'.
Source https://docs.libretro.com/library/caprice32/