Hi, I'd need to convert a video from .mts/.mt2s (AVCHD) format in Windows 7 to QuickTime .mov that can be opened with iMovie in a Mac computer without significant loss in the HD quality. So far I've tried numerous different software tools and all of them have failed. - Sony Vegas Pro 10 crashes when I try to render the .mt2s file to .mov - MPEG Streamclip didn't work either - I bought 4Media HD Video Converter 6 and although it seemed promising, even that didn't work out. The result either crashes the software (it's a big ~1hr video) or the transcoded video is upside down. I'm really out of clues here. I've tried googling and searching for YouTube transcoding tutorials but none of them have helped. I don't have a Mac computer I could use for this purpose so the transcoding would need to take place in a PC/Win7 environment. Any suggestions are highly appreciated. Thanks!