I'm having a problem with my MZ-N10. Occasionally it will display READ ERR and i can't do anything. then for no reason it will work. sometimes if i try to record something while it says READ ERR it kicks into gear and will work for a bit then give up. when it does work, it only stays on for a couple minutes before displaying the error again. other times when i try to rec while it displays the error it starts to then while saving while display REC ERR. this would be way less frustrating if i could figure out what is causing it, but i've tried many discs (new and old) nothing seems to make a pattern about when it will or won't workis there anything i can do? thanks