Downloading ROMs for games you do not own is generally considered copyright infringement in many jurisdictions.
Most modern emulators support CHD natively. You do not need to uncompress the file to play it. chd psx roms top
Here is a curated list of the most iconic, best-selling, and technically impressive PlayStation 1 games available in CHD format. These represent the "top" of the library. Downloading ROMs for games you do not own