HaloMods "Classic" Read-only Archive

I tried diferent kind of file sizes and it looks like what matters is that it has to be the same size or smaller to play.

I'm having the same problem. I got it to work but don't now for sure what it is. May be one of 2 reasons or both. The first time it didn't work the file size of my video was 24.9mb (original bungie 12.6mb). When I analyzed the file mine had a 2,930,000 bytes per second and the original had 2,819,000...