Okay, not sure if this is the right place to ask, but if I'm not mistaken I saw a little tool that allowed you to view .mpr files without starting up LFS first. I didn't download it then but I would like to try it now. However, I can't seem to find it. Searching for it hasn't turned up anything, but then again it's rather difficult to search for the right keywords as thousands of posts have the word "replay" in them etc...

So... anyone know what I'm talking about and where I can get it?

Replays contain controller inputs and less frequent position updates - Ai "re-enact" the replay for you, so a "dedicated replay viewer" would need all the textures, the physics and the cars, making it no smaller.

You can open an .mpr with LFS by right clicking on it, and going Open>Open With>LFS.exe (you may need to hit browse to find LFS.exe), it will then copy the file to LFS>Data>MPR and open LFS and automagically play it for you. You can do the same to SPR's, LYT's and SET's

Aha, so I was wrong. Thanks for the info.