Yes, I have experienced the same problems. I have had a GL1 for about two years and a JVC HR-DVS1U for about 18 months. The playback of tapes on the JVC unit worked for a while, but then the sound started to get distorted. Currently, I cannot playback tapes on the JVC because of the sound distortion. Tapes recorded on the JVC unit, do play ok on the GL1.(posted 8256 days ago)Were you ever able to solve the problem you mention?
Paul