First off anyone who uses Kazaa is an idiot. Kazaa is pure trash due to the fact that it kills your computer. Kazaa lite is much better but still full of shitty files and not that many. The real good programs are the ones with 10s of tousands of gigs of files that are real. No shitty cammera recordings, they have DVD rips and Divx. No shitty games, games in iso form.
And if you didn't understand the last part, you really dont know what you are doing in terms of downloading.