The reason the files are being corrupted, and I am surprised that no one has said anything yet about it, is because the songs are being downloaded at a rate faster then the server will allow. The songs are being stripped from the user across the p2p network at some point and this is corrupting the file. The reason it seems to be the T3 users is that when you download songs from them, they are sending them faster than the server will allow. watch your transfer rate. The more people that have the same song, your transfer rate goes well into the 200 kb\s. This has happened on other networks as well.