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Re: Samsung SH-S183A SATA on VIA VT6420 controller


> Verbatim DVD-R 16x 4.7GB.

This cannot be burned without the failed MODE SELECT command.

> drive name:             sr1     sr0
> ...
> Can write DVD-R:        1       0

Currently i'd count this as a documented case of a
drive lying towards the operating system.

> I just tried a noname blank DVD+RW
> :-[ FORMAT UNIT failed with SK=5h/ASC=24h/ACQ=00h]: Input/output error

(CDB is the command plus parameters which was sent to the drive)

Formatting is supposed to run for a few dozen seconds
in foreground and to then open the way for writing
while continuing in background.

This does not look good.
The drive refuses on about any sincere preparation for
writing. Actually sending some mode pages to learn from
the drive's reaction is a frequent practice even
if one does not burn afterwards.

I assume your failed cdrecord experiments
included an attempt with CD-R[W]. 

The current state is unusual and unhealthy. There is
few hope you will succeed by any burn software.

You will have to strive for replacement of the drive
or for the proof that it works with a different computer
and/or operating system and/or burn software.

If it works in a different environment then one will
have to explore the decisive difference. Interesting.
Open ended, at least. Report any new insight.

Have a nice day :)


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