Comment 19 for bug 1098323

We've actually released a fix for this, should make it's way to trusty soon. See this commit:
http://git.xfce.org/apps/parole/commit/?id=62f3b404a41bdce368fd3777328c966f87b860f4

Parole detects the DVD location ( /dev/sr0 seems to be a popular one ), and uses the the dvd uri... dvd:///dev/sr0 to function correctly.