If you find a "HC" version that is a 7z file between 700MB–1.2GB, it is likely legitimate (just heavily archived). If it is under 400MB or an .exe, avoid it. The best way to play remains finding the original 4.5GB ISO and using PCSX2.
That is an interesting and very specific topic, as it touches on , emulation , and the nostalgia market —specifically for the PS2 era. Wwe Smackdown Here Comes The Pain Highly Compressed