Comment 4 for bug 446689

Looks like growisofs is failing due to either some bad media or a failing drive. Take a look through that log:

I: -input-charset not specified, using utf-8 (detected in locale settings)
  8.95% done, estimate finish Thu Oct 8 22:49:44 2009
 17.91% done, estimate finish Thu Oct 8 22:49:44 2009
 26.84% done, estimate finish Thu Oct 8 22:49:47 2009
/dev/dvd: restarting DVD+RW format...
/dev/dvd: "Current Write Speed" is 2.5x1352KBps.
:-[ WRITE@LBA=310h failed with SK=3h/POWER CALIBRATION AREA ERROR]: Input/output error
:-( write failed: Input/output error
/dev/dvd: flushing cache
/dev/dvd: writing lead-out
/dev/dvd: reloading tray
:-( unable to reload tray: Resource temporarily unavailable
genisoimage: Broken pipe. cannot fwrite 32768*1