I don't think there is support or probably ever will be support for .vob or .ts. These are not very widespread formats.
.3gp on the other hand is a widespread format, but more for mobile phones....not carpcs! This is due to the resolution and besides, DIVX is a better codec than 3gp ever was or will become!
MP4 on the other hand, should be supported by nature! To get suppose for that, I believe you have to install a .mp4 codec