I have a DCR-TRV320E When I play back tapes, there are three or four thick grey bands across the picture, and the sound drops in & out. Ive run a Scotch 8mm cleaning tape through it about 20 times and thats had no effect at all. Is it worth trying to clean the head with an Isopropyl Alcohol solution or similar (assuming the head is clogged?). One other thing is Ive tried playing older Digital 8 recordings that I know were ok, and they also have the same problem, so it appears to be a Playback issue only. Anyone have any ideas?