Transformers Disc 2 started up fine in our BH200. Properly recognized as an HD DVD, menu works, and I had no problem playing a special feature. Not sure if there was a specific action that failed, so I couldn't test that. Anyway, seems to work fine.
BH200 - March Firmware - Driver version 0702
Perhaps 5harkology has a bad disc...?
edit: we don't have any of the other "problem" discs mentioned to this point, so I can't test other titles. We might do a factory reset, in which case I'll test again against that firmware (and hopefully 0701...).