I downloaded the newest version of Pocket DVD studio, but I can't seem to get it to work right. When it tries to load a DVD, it says that I don't have any DVD software installed and it recommends PowerDVD, but that is what I do have installed....

Can you play the DVD with Power DVD?

If so open the DVD with Power DVD and let it play a sec or two
then stop it but don't close the program. Now try going into the Pocket-DVD Studio and see if it loads the DVD.