I know just about everyone uses mediaengine but what do you guys think of InterVideo? I think It's primarily their answer to Microsofts Media Center. But I thought it could be used in the a CarPuter or a home theater built from a barebones system. I used it in my laptop for a quick test and it worked great. I don't have my CarPC hooked up yet due to RMA issues so I couldn't test it there. (my copy is the full version - free)
I've included the link and some screen shots.
I just downloaded the free tryout and it seems OK, there are some limitations to it tho