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[edit] Forget it. It seems to work now - apparently it´s because some of the tracks were recorded using a different recorder. Those I recorded, I apparently can delete. I leave the post as is, but disregard it. [/edit] (Sorry if this is the wrong forum, but the thread seems to fit) I´ve got a problem with my MZ-R900 - whenever I try to erase a track, I get TR PROTECT - even though the track was recorded a minute ago, using the optical cable and the optical output of my DVD-Player, playing a (original) CD. I have yet to read the manual entirely, but searches through it, or the web, didn´t find anything useful. Even here I didn´t find much I could use. These tracks obviously are protected - but why? And how can I erase them? Is it possible that it´s merely a disc-failure? I´ve checked the write-protect tab, but it´s fine - I could record as long as there was empty space. Should I discard the disc as write-only, or is there a simple solution(i.e. not buying additional hardware)? BTW, the disc wasn´t new or empty - some tracks have been written on it, by using a non-portable(bookshelf?) unit. Can this be the reason?