It sounds like you’re looking for a guide on in PBP format (often used with PSP emulators or POPS on PSP hardware) and possibly how to find or manage them from an "archive" or "top" collection.
Happy gaming, and keep those memory cards backed up! ps1 pbp roms archive top
: PBP files naturally compress game data. While lossless, some archives prefer the CHD format for pure emulation because PBP can occasionally have minor compatibility issues with specific older emulators. PS1 (PlayStation 1) ROMs It sounds like you’re
: A widely recognized set that includes a significant library of PS1 titles pre-converted into the single-file .PBP format. Cylum's PlayStation ROM Collection : A widely recognized
The Beetle PSX and PCSX ReARmed cores both support .PBP files natively.
: A well-known curated set that often includes clean rips.