Do not download ROMs from torrent sites or ad-ridden "ROM portals." Many of these files contain malware or are poorly patched.
This is a classic anti-piracy measure or a bad ROM dump. Some early files from 2003 have corrupted sectors. tomba iso rom
But as the PlayStation 1 (PS1) fades into retro history, the only way to revisit this cult classic is through emulation. This is where the search for a begins. Do not download ROMs from torrent sites or