the other way is to play your footage live through the camera’s output into a capture card using whatever compression format you like best. The camera will “playback” those “spanned files” as one.
Down side is that you take a step backward by having to wait on live capture again, but if it is AVCHD you have to wait on re-encoding it anyways because none of the NLE’s will handle it very good anyhow….so the time is approx the same….and by live capturing it…you end up with better files than re-encoding the AVCHD….not to mention it solves your desire to have one file out of the many.
If you have access to Final Cut Pro, the “Log and Transfer” function in FCP recognizes tapeless cameras files as “one large file” and will convert them to prores or Apple Intermediate codec” upon ingest. Just one other solution.
CS5 touts some impressive abilities with native AVCHD, DSLR and RED footage, so we shall see.
Hope that helps ya. have a great night