I have been through the same runaround with Cyberlink Tech Support RE "Internal Error 800401F9", as well as the forum link given in one of your responses. FWIW, tech support never gave me the advice that the other thread suggests "tech support will have you do tbe following....". They told me to download the "CLcleaner" programs to uninstall all traces of earlier versions of PowerDVD, then told me to reinstall everything using password-protected installation program download links. The passwords they gave me didn't work. Finally they just removed password protection on the downloads and I was able to download and install them.
After all that, I still got the "Internal Error" message. Different error code number than yours, but same result - I can't play any Blu-Rays with PowerDVD 10.
Ultimately, the "fix" is to pay for an update from PowerDVD 10 to PowerDVD 12.
drewwerd, if you find decent media player software that can play Blu-Rays, please post your findings here. I'm looking too, because Cyberlink is clearly not the solution.
PS: the forum guys had a point with disavowing Cyberlink as "their" software. This really is a user forum, and the poor quality of Cyberlink software is not the fault of the forum moderators or supporters.
This message was edited 2 times. Last update was at Dec 13. 2012 00:53