I got the same problem on my Mac. I used to use 0.9.8a, then I installed 1.0.0 and the DVDs not longer come up. Hopefully I did a backup (moving the app) of 0.9.8a to other location outside Applications so I can use both 1.0.0 and 0.9.8a. Well so I installed 1.0.1 today thinking this new release sol...