files, these are highly compressed "Error Code Modeler" files used in the early 2000s. Emulators play these; you must use to restore them to a format before they can be used. 4. Summary Comparison .BIN / .CUE .PBP (EBOOT) Compression Good (~30%) Excellent (~40%+) Multi-Disc Separate Files Single File Separate Files PSP/Vita/Mobile Modern PC Emulation into the CHD format? Ultimate ROM File Compression Guide (CHD, PBP, and RVZ)
A game means a trusted uploader has verified that the game: ps1 highly compressed games fixed
Standard PS1 games (ISO/BIN/CUE) often take up . Compressed versions (often in .pbp or .chd formats) can shrink these to under 100MB . The "fixed" label typically means: files, these are highly compressed "Error Code Modeler"
The gold standard for modern emulation (DuckStation, RetroArch). It uses lossless compression, meaning no game data is actually lost, just packed tighter. Summary Comparison
Depending on what you downloaded (Highly Compressed PBP vs. Standard ISO), you need the right tool.