Using vegas 7 all my m2t files play from timeline at 25fps. There is only one m2t file playing only 8fps and audio is a few frames shorter then video. All the files are coming from the same HDR-FX1E. When I take HDTV2MPEG and let it rewite the first minute to a file, the problem still exists. However if I cut of the first 5 seconds in HDTV2MPEG, preview is again at 25fps in vegas. So I think there is something in this particular m2t file confusing Vegas. For the case anyone wants to do any tests, I still have the problematic m2t file here.