I dowloaded DVDs from LimeWire (regular, not pro) and I don't know what application plays them! I tried Idvd, but it says 'unsupported file type: video not valid'
I dont know how to make it play!

What file format is it? What's the extension? (eg: mpeg, mpg, avi, wmv, etc.) May I recommend you try VLC a free player that plays most movie formats: http://www.videolan.org/ Personally I have it set as my default video player. Are you only interested in watching them or burning as well & to cd/dvd?

Its wmv, and I want to watch it and burn it if possible.

oh, and how do you download that video player? I cant find the link to download.

okidoke, http://www.videolan.org/vlc/ or more directly for OSX: http://www.videolan.org/vlc/download-macosx.html & just select any mirror site. France should be fine!
As for burning to dvd/cd (you'll need a dvd burner to burn dvd's), well for wmv I'm really not sure. Problem with wmv is that they can be coprighted (have licencing) that prevents them from being utilised. Secondly, I'm not aware of any app that can convert them. You can visit http://www.videohelp.com/ or/&
http://forum.dvd-guides.com/ to ee if you can find an app or advice upon this.

For OSX, Toast can convert & burn mpg/mpeg & avi files. So you should be aiming to dwnld these ones. If they're full movies they should be 500-700 MB in size. Toast handles video quite well (particularly version 6.)

so i have an mpg that i want to burn to dvd but when i try to save as it wont save in movies on my osx or i cant transfer it to idvd. are you saying i need this toast program? i cant figure how to burn movies! Can't access them in idvd or imovie.

I am pretty mac illiterate. just got one. actually i am pretty computer downloading illiterate.

also i have heard of a program called peer gaurantee so that others cant see what you are downloading. it seems to be specifically for pc is there a program out there like this for mac?