While the idea of downloading a full PS2 library in a few megabytes is appealing, it is technically unfeasible and often dangerous. "Highly Compressed" files under 500MB are usually scams or malware traps.
What you are actually downloading is:
A "highly compressed" PS2 ISO usually refers to a game disc image that has been shrunk to a fraction of its original size—sometimes under 500MB—using specialized compression formats like Popular Compression Formats CHD (Compressed Hunks of Data) ps2 iso files highly compressed full
Ensure the description explicitly states "No Rips." You don't want to get to the end of Final Fantasy X only to find the ending cutscene was deleted to save space! Performance: Will Compression Lag My Game? While the idea of downloading a full PS2
However, there are also some potential drawbacks to consider: Performance: Will Compression Lag My Game
is listed at (likely a rip or high compression) and Need for Speed – Underground 2 at 365.6MB .
Drawbacks: