I'd value some help.
I'm long-time film maker, long-time editor, but poor technician.
I have an MTS file from a client. They want H264 with fairly standard specs output.
I have tried a couple of MTS converters, currently working on Easysoft Mac video converter.
I tried converting the original to the output spec and got poor results.
Tried instead a preset HD Mov, worked in FCP in that format, then output in the specs asked for, and that looks better but not great.