How to set optical drive speed

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The speed of the optical drive is set separately for CD-ROM and DVD, and is reset at reboot and resume from suspend.

  • CD-ROM: use
hdparm -E num


eject -x num
  • DVD: use
speedcontrol -x num

The speedcontrol utility has source code available.

For recent ThinkPad models running Linux kernels older than 2.6.15, this may require the libata pass-through patch.

See also

How to silence DVD ROM