At the bottom right, there are buttons labeled Title, Sub, and Audio. The Title button did nothing when I clicked on it, while the Sub button brought up a display offering a choice of subtitle tracks on the disc, and Audio gave me a similar display for audio tracks. Because they are labeled as "Audio 1" or "Subtitle 2", you have no idea what you're actually selecting.

The video itself looked fine when it played properly, but it stopped and started constantly, and often displayed with huge, ugly artifacts. And at times, the app would freeze completely and require a force quit.

Just to make sure it wasn't a problem with one Blu-ray disc, I tried some others. With the results were much, much worse. It got a few seconds into the United Artists logo before the movie and completely froze playback. On several attempts. With David Cronenberg's , playback was generally better--but the software played the 'making of' movie instead of the actual film. I thought there might have been a preference to help with the movie selection, but--wait for it--the Preferences item didn't do anything when I selected it.

To be nice, I also tested the software with a standard DVD and it failed to even open the disc. I quit the app and tried again, and this time it worked. I tried playing that same DVD using OS X's built-in DVD Player app (using the same external drive) and had no problems. Which makes me wonder why you'd ever want to use this app instead of DVD Player for such purposes.

That three-month trial period the company is offering? I think that's so you can be beta testers for its not-ready-for-prime-time software.