Hi all,

I would like to ask for a best practice editing MTS files and creating a good home video at a viewable level, nothing fancy.
My handycam is a cheap sony and currently I am shooting videos at 1920x1080i 50fps. Of course it is a cheap sensor, cheap proessor and the resolution is upscaled or interpolated. But it is not about quality.

Once I load the copied MTS files from my handycam into Kdenlive I can see every video file ending with 5 or 6 completely identical frames as if the image would stay still. After I render a complete video those transitions between videos are "laggy" and the output seems like stuttering. Otherwise the inner parts of scenes are fluid and ok. Only those small gaps on the end are bothering me.

I have read numerous threads about issues like this and people advise to either completely transcode those MTS to MOV or MP4, or use a DNxHD transcode for lossless quality. I tried this and got different results.
DNxHD as the only codec has delivered video without duplicate frames, but the file size is very limiting. All other codecs like x264, mpeg2, theora, matroska, etc. end with 1 or 2 duplicate frames.

Then I tried with proxy videos instead as there have been discussions as well. The proxy way is more promising for me, because of small intermediate ts files and because rendering takes the very original footage without quality loss. But again I experience 1 or 2 duplcate frames at the end of each proxy. Resulting complete video is much more fluid compared to the MTS rendered one, but I can still see those little lags between videos.

Simply said, I want to get rid of those duplicate frames at the end. How should I proxy / transcode those videos? except DNxHD or manually cropping each video by 2 frames on the timeline..

I can provide an example MTS if needed.

Thank you.