> Im assuming they are raw because I copied them directly from the camera's SD card.
But under properties it says MPEG movie. So is MTS uncompressed?
No, MTS is not uncompressed/raw. 'MTS' stands for 'MPEG transport stream'. It indicates that the data is encoded using an MPEG codec---in this case likely MPEG-4.
Your assumption that "they are raw because I copied them directly from the camera's SD card" misses a very important point about digital video: Nearly all cameras record to a compressed format. Very few record to an uncompressed/raw format. The ones that do record uncompressed/raw data are not cheap.
> What would be the best format/codec/whatever to export the finished sequence completely uncompressed?
Why would you want to do that? You only use uncompressed media as an intermediate in a post-production workflow---not not final delivery.
I recommend following the link that joe provided.
Ah thanks so much Joe and Todd.
I was wanting to have a lossless version of the video for backup to answer your question.
So given that it was encoded using MPEG, should I stick with an MPEG codec for exporting? Or will that just compress it more?
Otherwise I will use H.264 Vimeo HD preset.
The codec used for the source material has almost no bearing on what codec to use for export.
Again, I recommend following the link that joe provided. This gist of the resource on the other end of that link is this: Your output settings depend on what you're going to do with the output movie. If you're putting the movie on Vimeo, use the Vimeo encoding preset.