games

I bought one of those handheld emulators, it can play up to PS1 games and I can’t figure out how to get Metal Gear Solid and Rayman on it (these are the only PS1 games I’ve tried to load onto it, the thing comes with some games but they’re mostly shovelware). For Metal Gear Solid, the Emulation Info Megathread’s link to game roms has it in two separate discs (apparently how it came originally, where you were supposed to load disc two when prompted and without turning off the console, obviously complicated when emulating), and when I unzipped Disc 1 it had a cue file that I assume would load in the second game, but how would you put this into one file again along with the second disc? I’m wondering if I can bypass this by simply playing Disc 1 up to its end then loading Disc 2 separately, unless there is some continuity in gameplay (collectibles, story/gameplay deviations, health carrying over, etc.) that requires this, which it seems like there would be considering how it was done originally on the PS1. Is there a hacked version where the two discs are already put together into one rom, or is there some bottleneck on PS1 emulation like how the increased size of the Shrek & Shark Tale GBA Video cartridge makes it impossible to emulate as a GBA game under the current model?

And for Rayman, when I unzipped the rom file (also found in the EIM) it had all these different files for music and everything instead of the single file I could put right into my folder like for the GBA, SNES, or Genesis. What am I supposed to do with this? Sorry if these are silly questions, I haven’t emulated games before.

Legal Note: I possess both of these games physically and am therefore not , as I respect intellectual property and simply want to experience these games in a new way.