adywan said:

yes, MultiAVCHD is a brilliant free program. If you are worried about quality loss due to transcoding then i would suggest using 2 pass VHQ as the transcode settings. It does take a long time but the results are a lot better than 1 pass turbo. It takes me about 12 hours to do a 2 hour movie using this setting

Consider that fast! My computer takes several whole days to use 2 pass VHQ. The quality is better, but not actually by very much. Dean, who developed the program, recommends and uses 1 pass turbo.