Hello all, I own two MZN505s and I recently developed a problem with one of them. I use one to record approximately 5 hours of a radio show and one to listen at work. When listening to a recorded disc, the sound would skip and made the recording almost impossible to listen to. So I swapped the recorders and the problem seems to have dissapeared. My new problem, however, is that the new recorder won't record all the way to the end of the disc. Only 80 or so minutes or recorded audio is available. The disc has only one track, I know this because I erased the whole disk before I began recording. What could be wrong. I guess I'll have to try a new disc. Another problem is that if I have multiple tracs on a disk and I begin recording a new 5 hour interval, the recoding stops at the end of the first track. What is wrong here. Any help is greatly appreciated. Thank you.