[Debburn-devel] dvd+rw-format, DVD-RW media, wodim errors, unusable disk.

[Thomas Schmitt]

Hi,

> Maybe I've forgotten but I thought I used the growisofs -dvd-compat -Z
> /dev/scd0=image.iso

Looks much as if the DVD-RW media were
already formatted.
A sequential DVD-RW should be in closed state
after that growisofs run and thus should refuse
on the next write attempt.


> I'll try again
> and be sure, and retry the dvd+rw-format -blank=full command
> on my new DVD+RW media,

DVD+RW are very different from DVD-RW.
The Blank operation does not apply to them.
Formatting can be done by the burn program during
the normal write operation.

growisofs will do what's necessary if you just
throw in a DVD+RW media - new or used.
It is supposed to behave as you report above:
with -Z it writes the media from scratch.


> but I fear the same result, if it's truly my drive(s).

I expect dvd+rw-format to refuse on -blank with DVD+RW.

The drive-media compatibility problems are more
complicated. It really depends on the individual
drive models (+ drive firmware) and on individual
types, manufacturers or even production units of
media.
As said: with DVD-RW it is most interesting
and adventurous.


> I'll ask if he has any other
> undamaged discs he can sacrifice.  :-D

No sacrifice needed.
I just want to know whether they are already
formatted. The media can then be returned to
its owner in original state:

  dvd+rw-mediainfo /dev/scd0
will either say:
  Mounted Media:         14h, DVD-RW Sequential
or
  Mounted Media:         13h, DVD-RW Restricted Overwrite

It should not say:
 State of Last Session: reserved/damaged
as it did with your problematic media.


Have a nice day :)

Thomas