Recognizing DVD movie

I’ve just gotten the 811s with the hso6 firmware and it read my movie dvds just fine. But the drive played burned dvd-rw movies a bit “jumpy”. I’ve update to hsoe and it could read the dvd-rw fine, but now the drive doesn´t recognize my dvd movies. I play back in powerdvd, which worked fine before.
Do you have any solution?