different video formats

[stevie m]

whats the difference between an MPEG, mpg,avi and wmv files and can I convert them all to, say mpg's

[fo3nix]

They just use different codecs, i.e., algorithms, for compressing and playing data. If you want to convert them then you can, but you'll lose quality.

http://www.erightsoft.net/SUPER.html#Dnload
this will convert for you

http://www.videolan.org
this will play back pretty much all formats for you