rossz az író v. lemez v. valami más

Vettem jópár dvd lemezt, és eddig mindet elírta az íróm, amit írni akartam, de nem tudom hogy a lemez hibás, vagy az író fáradt már el és jobb lenne nyugdíjazni.

minden lemezt így fejez be (log vége):

growisofs -Z /dev/scd0 -dvd-video /kiirando

........

79.52% done, estimate finish Sat Apr 5 11:45:54 2008
79.74% done, estimate finish Sat Apr 5 11:45:54 2008
79.96% done, estimate finish Sat Apr 5 11:45:53 2008
80.18% done, estimate finish Sat Apr 5 11:45:53 2008
:-? the LUN appears to be stuck writing LBA=1b82a0h, keep retrying in 19ms
:-? the LUN appears to be stuck writing LBA=1b82a0h, keep retrying in 35ms
:-? the LUN appears to be stuck writing LBA=1b82a0h, keep retrying in 35ms
:-? the LUN appears to be stuck writing LBA=1b82a0h, keep retrying in 35ms
:-? the LUN appears to be stuck writing LBA=1b82a0h, keep retrying in 35ms
:-[ WRITE@LBA=1b82a0h failed with SK=3h/ASC=0Ch/ACQ=00h]: Input/output error
:-( write failed: Input/output error
/dev/scd0: flushing cache
/dev/scd0: updating RMA
:-[ CLOSE TRACK failed with SK=5h/ASC=64h/ACQ=00h]: Input/output error
/dev/scd0: closing disc
:-[ CLOSE DISC failed with SK=5h/ASC=64h/ACQ=00h]: Input/output error
/dev/scd0: reloading tray