Only available recording speeds are "maximum" and 47.9x

Bug #668330 reported by Rune K. Svendsen on 2010-10-29
This bug affects 3 people
Affects Status Importance Assigned to Milestone
brasero (Ubuntu)

Bug Description

Binary package hint: brasero

When I try to burn a CD with brasero, be it an audio CD or an image, the only speeds I can select are "maximum" and 47.9x (which is practically maximum).

I remember being able to burn at lower speeds a couple of years ago, so I'm not sure what has happened since.

ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: brasero 2.30.2-0ubuntu1
ProcVersionSignature: Ubuntu 2.6.35-19.25~lucid1-generic
Uname: Linux 2.6.35-19-generic i686
Architecture: i386
Date: Fri Oct 29 15:19:22 2010
InstallationMedia: Ubuntu 10.04 "Lucid Lynx" - Alpha i386 (20100405)
 PATH=(custom, no user)
SourcePackage: brasero

Rune K. Svendsen (runeks) wrote :
Rune K. Svendsen (runeks) wrote :

I think I gave found out why this is the case. The output of the command "wodim -prcap dev=/dev/scd1" says, amongst other things, the following:

  Maximum read speed: 8450 kB/s (CD 48x, DVD 6x)
  Current read speed: 178 kB/s (CD 1x, DVD 0x)
  Maximum write speed: 8450 kB/s (CD 48x, DVD 6x)
  Current write speed: 2 kB/s (CD 0x, DVD 0x)
  Rotational control selected: CLV/PCAV
  Buffer size in KB: 8192
  Copy management revision supported: 1
  Number of supported write speeds: 0

so the drive apparently supports zero write speeds. That seems to not be sufficient... for writing at least.

Is it possible to tell some application, perhaps wodim, that it should ignore the above information for this particular drive, and use the info from the below link instead? It's a product specification from Samsung that says that this particular drive, SM-348B, supports the CD-R write speeds 48X 40X, 32X, 24X, 16X, and 8X.

Changed in brasero:
importance: Unknown → High
status: Unknown → New
Changed in brasero (Ubuntu):
status: New → Triaged
importance: Undecided → Low
Changed in brasero:
status: New → Unknown
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