Re: Can mount external CD but can't play or rip tracks

["Thomas Schmitt" <scdbackup@gmx.net>]

Hi,

Kete wrote:
> > cdparanoia is "Unable to open disc."

The source search offers me two occasions
  https://codesearch.debian.net/search?q=package%3Acdparanoia+Unable+to+open+disc
If there is really no text "Is there an audio CD in the drive?",
then it's
  https://sources.debian.org/src/cdparanoia/3.10.2+debian-14/main.c/?hl=1041#L1041
I.e. cdda_open() did not return one of {0, -2 ... -6}.
The "cdda" in the function name indicates that this function looks for
CD-DA audio tracks, in contrast to CD-ROM data tracks.


Dan Ritter wrote:
> Some file browsers mix the two, and present CD audio tracks as
> though they were files. They aren't, really.

Indeed.

> 1. What kind of disc are you using?

To determine the CD track structure, put it into the drive (/dev/sr0 if
it is the only CD capable drive of the computer) and do:

  cdrskin dev=/dev/sr0 -minfo

which should report for CD-DA tracks something like:

  Track  Sess Type   Start Addr End Addr   Size
  ==============================================
      1     1 Audio  0          3289       3290
      2     1 Audio  3290       6350       3061
      3     1 Audio  6351       7643       1293

and for a CD-ROM track something like:

  Track  Sess Type   Start Addr End Addr   Size
  ==============================================
      1     1 Data   0          172027     172028

With

  wodim dev=/dev/sr0 -toc

it looks a bit more cryptic.
CD-DA is "control" 4:

  track:   1 lba:         0 (        0) 00:02:00 adr: 1 control: 0 mode: -1
  track:   2 lba:      3290 (    13160) 00:45:65 adr: 1 control: 0 mode: -1
  track:   3 lba:      6351 (    25404) 01:26:51 adr: 1 control: 0 mode: -1

CD-ROM is "control" 0:

  track:   1 lba:         0 (        0) 00:02:00 adr: 1 control: 4 mode: 1


Have a nice day :)

Thomas