I would also build to a folder and test playback on the computer.
Do you have a link to the pre-6.0.1 issue and wehre it says it was fixed? If it is not fixed, you should file a bug report.
Technically its a Bluray Disk, not a DVD. But as long as we know its Bluray, not a problem. Occassionally, we get users who do not know which type of project they are working on.