I'm running Linux and using a Plextor PX-716A burner with
dvd+rw-tools 6.1.
When I burn a DVD at a speed lower than its max default rated speed,
as seen in dvd+rw-mediainfo output, then at the next burn the
current burning speed is fixed to the previous value, so I can't
set a highter burning speed.
I.e. if I burn a capable 16x DVD at 8x in the first burn, in the
second burn I can choose 8x or a lower value but NOT 16x.
To reset the drive I have to reboot the system.
Could you do following:
- reboot the system;
- put 16x media in unit and collect 'dvd+rw-mediainfo /dev/cdrom
verbose' output;
- perform 8x recording;
- put another 16x media in unit and collect another 'dvd+rw-mediainfo
/dev/cdrom verbose' output;
Send both to me.
Anyone has experienced the same?
I for one wouldn't know because of lack of personal hands-on experience
with PX-716, but there was report which might be similar to your
problem, look for "Plextor PX716A speed problem : probably a Powerec
issue." There was no resolution though... It should be noted that I
attempt to maintain growisofs as least common denominator for all units.
Meaning that if solution would require using of vendor-specific commands
[Plextor in this case], then I'd rather not to add it to growisofs, but
advice to use QpxTools [or in worst case consider writing small
command-line snippet, which would make it possible to work around the
problem, as soon as it's understood]. A.
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