I have the exact same behavior as oleibrock with a brand new LG GSA-H22L DVD writer. When I first insert the burnt DVD-R I get "this is a blank CD/DVD" popup and in dmesg I see: "cdrom: This disc doesn't have any tracks I recognize!"
Then I run the python script and manually mount the drive to /media/cdrom1 and then I can access it fine. If I don't run the script and I try to mount then the mount point remains empty. -- hal detects written DVD as empty https://launchpad.net/bugs/14692 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs