A couple of tips here: 1.
T3 Spammers; mp3 Bit-Rates Versus File Sizes requires some very careful comparison to realise which files might be corrupt. 2.
Most Popular Songs R' Corrupt And yes not all T3 sources are bad. Just that some are giving T3 users a bad name for obtaining music from. This is a universal gnutella problem faced by everyone & applies to all clients.