HaloMods "Classic" Read-only Archive

I reformatted my hard drive recently, so I think I lost all of my WMP codecs. Whenever I try to watch some video that I recorded on Fraps, it says "Error downloading codec", and then it plays only the audio from the video I filmed. What codec do I need to view the video portion? Could someone please give me a link? There's a video I filmed that I REALLY need, because it would take FOREVER to refilm. Thanks.

I just watch everything with media player classic, the Matroska codecs, ad sometimes the K-lite codec pack. Usually that plays almost anything.