--- Sengoku Basara 2 Heroes Ps2 Iso Highly Compressed [patched]

Archive.org (search user-uploaded redump collections), CDRomance, or dedicated emulation subreddits (r/Roms). Look for "CSO" files, which are natively compressed ISOs for PS2.

That said, if you own the game and want a compressed version, these are the common archival sources (always scan with antivirus): --- Sengoku Basara 2 Heroes Ps2 Iso Highly Compressed