Lossless crop AVCHD and save back as AVCHD

Question

I have many videos are record in AVCHD format by my SONY NEX6 camera. i want to crop those useless shots and save it back to AVCHD. It is because i don't want to convert to other video format which take up more space (Apple ProRes) than the original file, and i don't want to lower the video quality.

Is there any tools out there free or paid is fine. i just don't to to view too much rubbish shots when i play back to video ?

Answer 1

found TMPGEnc MPEG Smart Renderer 4 can crop my AVCHD video clips and save it back to AVCHD file to save space and without rendering

http://tmpgenc.pegasys-inc.com/en/product/tmsr4.html