After a little problem I have erased all my mp3 collection and I have to download again all of them. :-(

But I don't know what downloading system is nowaday the most powerfull between Kazaa and WinMX.
I think Kazaa is more autonomous than WinMX but that WinMX is more eficient than Kazaa with a power user to supervise the operations.

I want your users opinion about those softwares. Thank you.