I have a Sony MZ-N505 Typr-R it seems to hang up on track 6? It will start up no problem I can play songs 1 to 6 but it hangs at 6? I tried to delete all the songs but it hangs also. Ive been using the same disc since new thats about 6 yrs now. Just wanted to know if anybody can help me. Is my disc shot or my player? I should go buy a new disc but the only place u can buy them is on ebay.