I've had the same thing happen to my files as well. Until I came to this Forum, I thought that I did something myself to the files which was driving me crazy because I couldn't for the life of me figure it out. Neither can I comprehend how mp3 files could be compressed to a zip file. I've tried everything I know as well as everything I've read from others to remedy the situation with absolutely no luck. So I guess I'll just completely delete the entire folder and start the whole download process over again. I suspect it'll take me a few months to re-download the thousands of files I had but what else can I do? My only concern is that the same thing will happen again. So maybe I'll wait a while to see if Limewire or somebody else can come up with a solution.