Comment 15 for bug 561585

This is also happening on my system (amd64). The drive is a PIONEER DVD-RW DVR-217D, 1.07, max UDMA/66.

No CD:

$ sudo strace -vvfo /tmp/cdrom_id_new.trace -s 1024 /lib/udev/cdrom_id /dev/sr0
ID_CDROM=1
ID_CDROM_CD_R=1
ID_CDROM_CD_RW=1
ID_CDROM_DVD=1
ID_CDROM_DVD_R=1
ID_CDROM_DVD_RW=1
ID_CDROM_DVD_PLUS_R=1
ID_CDROM_DVD_PLUS_RW=1
ID_CDROM_DVD_PLUS_R_DL=1
ID_CDROM_MRW=1
ID_CDROM_MRW_W=1

CD-R:

$ sudo strace -vvfo /tmp/cdrom_id_new.trace -s 1024 /lib/udev/cdrom_id /dev/sr0
[sudo] password for brandon:
ID_CDROM=1
ID_CDROM_CD_R=1
ID_CDROM_CD_RW=1
ID_CDROM_DVD=1
ID_CDROM_DVD_R=1
ID_CDROM_DVD_RW=1
ID_CDROM_DVD_PLUS_R=1
ID_CDROM_DVD_PLUS_RW=1
ID_CDROM_DVD_PLUS_R_DL=1
ID_CDROM_MRW=1
ID_CDROM_MRW_W=1
ID_CDROM_MEDIA=1
ID_CDROM_MEDIA_CD_R=1

dmesg when I put a blank CD-R in the tray:

[250497.400574] sr 2:0:0:0: [sr0] Sense Key : Blank Check [current]
[250497.400579] sr 2:0:0:0: [sr0] Add. Sense: No additional sense information
[250497.400584] sr 2:0:0:0: [sr0] CDB: Read(10): 28 00 00 00 00 00 00 00 01 00
[250497.400594] end_request: I/O error, dev sr0, sector 0
[250497.400599] Buffer I/O error on device sr0, logical block 0
[250497.662885] sr 2:0:0:0: [sr0] Unhandled sense code
[250497.662889] sr 2:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE

That block of text is repeated roughly 52 times.