I've just bought a Sony HC30E hoping that the image quality will be better than that of my old Canon MV 300. Yesterday I recorded a scene onto mini DV using the Canon. I then removed the tape and put it into the new Sony, then recorded the same scene to do a comparison. When rewinding the tape in the Sony, I was able to view what I had recorded with the Sony but everything previously recorded on the Canon did not show (blue screen). What could this be due to? I now need to check if the old footage will play back onto TV or get captured onto PC from the new Sony camcorder.