This is a placeholder bug pending more information and a reproducer: Occasionally, the CD/DVD drive will sit making clicking noises. I believe hal is perhaps attempting to probe for disk change events, or something similar. This has happened only with media inserted, but the drive does otherwise seem to be working. It might be the drive, will keep an eye on it. Will followup when I'm next able to reproduce this with more useful information.
Does hal-disable-polling stop the clicking?
Jon, Have you followed the advice in comment 1, and if so did it correct your problem? -- Fedora Bugzappers volunteer triage team https://fedoraproject.org/wiki/BugZappers
The information we've requested above is required in order to review this problem report further and diagnose or fix the issue if it is still present. Since it has been thirty days or more since we first requested additional information, we're assuming the problem is either no longer present in the current Fedora release, or that there is no longer any interest in tracking the problem. Setting status to "CLOSED: INSUFFICIENT_DATA". If you still experience this problem on F11 or a later Fedora release and can provide the information previously requested, please feel free to reopen the bug report. TK009 -- Fedora Bugzappers volunteer triage team https://fedoraproject.org/wiki/BugZappers