Would you be willing to answer a few brief questions about PlayStation Forums?
Smudge it off or either take it to a Record Store for $2 and its clean again.
thats what i did to Midnight Clubtreet Racing (2000)
Supercar (2001) and
MADDEN NFL 2001.
My first ps2 slim I got stopped reading silver discs but for some reason it could read blue back discs fine...