KaZaA-lite is a great program, as was KazaA before I was recently converted. One of the biggest gripes though is the content. Although there are many good users out there who take the trouble to give you info about the file and also make sure that it is what they say it is, there are bloody loads who don't. Yeah, I know that Terminator 3 isn't out yet, but downloading files called Terminator 3 has got me Oceans Eleven, 40 days and 40 nights, half a film with Bruce Willis in and a 90 minute porno! What the fuck is the point. If you've got something shite on your computer, either don't share it or say it's shite!
And as for the music, there are millions of great files available, and then loads with bits deliberately missing in the middle of the track etc etc. If you have these types of files, stop bleedin sharing them as they're a waste of everyones time.