The same happens here on Dell XPS l502x. Eject doesn't work after burning a disk, but works in nautilus and unity dock.
Linux latawiec4 3.2.0-34-generic #53-Ubuntu SMP Thu Nov 15 10:48:16 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux
*-cdrom description: DVD-RAM writer product: DVDRWBD BC-5540H vendor: Optiarc physical id: 1 bus info: scsi@1:0.0.0 logical name: /dev/cdrom logical name: /dev/cdrw logical name: /dev/dvd logical name: /dev/dvdrw logical name: /dev/sr0 version: 201A capabilities: removable audio cd-r cd-rw dvd dvd-r dvd-ram configuration: ansiversion=5 status=nodisc
The same happens here on Dell XPS l502x. Eject doesn't work after burning a disk, but works in nautilus and unity dock.
Linux latawiec4 3.2.0-34-generic #53-Ubuntu SMP Thu Nov 15 10:48:16 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux
*-cdrom
capabilities: removable audio cd-r cd-rw dvd dvd-r dvd-ram
configuration: ansiversion=5 status=nodisc
description: DVD-RAM writer
product: DVDRWBD BC-5540H
vendor: Optiarc
physical id: 1
bus info: scsi@1:0.0.0
logical name: /dev/cdrom
logical name: /dev/cdrw
logical name: /dev/dvd
logical name: /dev/dvdrw
logical name: /dev/sr0
version: 201A