I'm looking to edit some HDTV that I've captured in Final Cut Pro. The captured files are all labelled 'Unix Executable File' and a .trp file. What I'm looking for is the best format to convert these files to first, so I can easily edit in FCP.

I've tried to MPEGStreamClip to demux each file (which are 15mins each) and I get a aiff & a m2v file. Each raw file and also each resulting m2v file is approximately 1.5G each. However, when I like up about 4 or so of these on the FCP timeline, FCP repeatedly crashes.

I then tried exporting to a uncompressed .mov file with Apple ProRes 422 codecs but the files ended up being around 8G each, and highly impractical.

I'm looking for an intermediate file where its not so big, I can easily get rid of the commercials, then use the 'Reconnect to media' option in FCP to reconnect to the raw file before I export to file type of choice.

Any suggestions?