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I know this is an older thread but I wanted to add some additional information in case anyone is researching.

I'm experimenting with an HG10 right now with Final Cut Studio. I have my import settings set to Apple ProRes 422 for my professional work.

OSX didn't recognize the video files as readable directly from the camera, so I used the Log and Transfer window in FCS to import the clips, which seemed to work fine. I did not have to initialize the drive.

The biggest issue I have (and I know that I'll have this problem with any consumer camcorder) is that the clips are re-compressed on import.

All consumer cameras use compression - they have to or they'd need to provide bigger hard drives - but I'm sort of bothered that Final Cut adds another layer of compression on the clips.

Worse than that, however, is that the newly compressed clips are much larger - a clip that is 92 megs on the Canon HD is 754 megs after import.

This means that FCS is creating information to suit the ProRes codec. Kind of like when you convert an Mp3 to a larger WAV file. It seems to be doing a fairly good job of it, but I think I need to get a bigger hard drive.
 
cannon HG10 and Mac

Like most HD camcorders you will inevitably end up using imovie 08 > on wards just make sure.
You have the power lead in
Its on play
Open imovie
Import from camera (Selecting it from the list other than built in isight if needed)
Choose manual or auto
import :D
Then joys of this is that you can use imovie as a nippy importer then simply drag the files into fcp/fce! they should work fine.
i also use a JVC HD3 and had trouble for years until i sussed it with JVC i ended up being part of the solution generation :D because multi-million companies struggle to think of these things.
 
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