[SOLVED]Movies- Downloads- Audio, no video…

Yeah I have downloaded 2 movies from here, they come out as AVI after 8 separate .rar files. When I play them with any media player on my machine, all I get is audio and a black screen.
Is there special software necessary to run these videos?
Answer #1
try installing the K-lite codec pack
www.free-codecs.com/download/K_lite_codec_pack.htm
But have you tried VLC for avi films?
Answer #2
I will try installing that codec pack. Vlc? Whats that?
Answer #3
VLC is a freeware media player. Google it and its clean and 100% legit
Answer #4
That codec did it, thanks man!