Extension Help (Lock 'er up Mods, Google-pwned)

[aplefka]

So I have these videos but they're in RMVB format. They're supposed to be quicktime vids so I'm assuming this is some kind of compressed file. How can I view them?

Edit: Shoulda googled, it's a real media file even though it SAYS in the readme it's a quicktime file. Whateva...