Hello, Currently, on account of hdparm's incomplete support for udev, hdparm doesn't work with my optical drives, since their device nodes are created too late.
It seems that Ubuntu has worked on this issue, and has added a udev script to their hdparm package which appears to solve the problem, though admittedly I haven't tested it. It is linked to from the Package Tracking System, or can be found at http://people.ubuntu.com/~scott/patches/hdparm. Perhaps it will help you to solve this issue. Cheers, Christopher Martin
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