I think this may be due to buggy cd rom firmware, if my rusty code
reading skills are still valid. In probe_volume.c, it appears that the
ioctl data back from the driver is bogus for blank media. For sure, the
disc.type field is being marked as unknown. If I put in a non-blank
disk, I get valid sizes. A blank disk gives bad info...  Only way that
probe_volume.c gets this is from the ioctl.

So, my opinion is that this is a driver problem, not a hal bug.

My drive is an old IDE CD_ROM Writer.  cdrom links to sr_mod.

Could this perhaps be related to the ide to sata changes of late?
Probably still a firmware bug...

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empty CD not correctly recognized by hal
https://bugs.launchpad.net/bugs/66254
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