How do I switch from cd 1 to cd 2 in attract-mode?
Some psx games have more than one cd.
If you use RocketLauncher that you mention in your other post it will give you this option in the pause menu.
A better option is combine your multiple disc files into a single .pbp file. This will eliminate the need to switch discs and will also provide directly usable compressed files (without needing to be unzipped) which will save a lot of space and provide a performance gain when loading games.
There are other options but .pbp files are the best option for psx.