so I got the Canon R21 High Def video camera...but can't play the files it outputs

when I save them to my harddrive using their sofware, the are mts files, which I can't open, edit or play

I can output via the AV out cable to my Sony Deck but its not HighDef video..

what is the trick to getting High Def out of the camera, either as MPEF4 files, AVI files or something I can edit using Vegas

the camera has HDMI out,,but my sony HD deck is out only, not in..I thought I might be able to transfer from the camera to the deck with the HDMI out cable...

anybody use this video camera and know the trick

Thanks in advance