Comment 3 for bug 772794

Does this system NOT write to media because the drive is faulty (i.e. it *should* be able to but is not working correctly), or because it's a read-only unit?

Would it be possible to run wodim -prcap /dev/cdrom >/tmp/drive-capabilities.txt (or whatever device this is on) and attach the produced txt file here? This seems to produce quite reliable information on a drive's capabilities, so the test can potentially be amended to use this.

here's partial output from a DVD-ROM (i.e. read-only) drive:

Drive capabilities, per MMC page 2A:

  Does read CD-R media
  Does not write CD-R media
  Does read CD-RW media
  Does not write CD-RW media
  Does read DVD-ROM media
  Does read DVD-R media
  Does not write DVD-R media
  Does read DVD-RAM media
  Does not write DVD-RAM media
  Does not support test writing

Compare to a DVD-RW capable drive:

Drive capabilities, per MMC-3 page 2A:

  Does read CD-R media
  Does write CD-R media
  Does read CD-RW media
  Does write CD-RW media
  Does read DVD-ROM media
  Does read DVD-R media
  Does write DVD-R media
  Does read DVD-RAM media
  Does write DVD-RAM media
  Does support test writing

I don't have a cd-rw-only unit handy, but wodim's output seems to be rather reliable for this.

I'll mark as triaged as hopefully, and pending confirmation on the E4310's results, this is enough information to start working on fixing this test.