Hi Richard and Robert,
1 - Do you get any kind of error message? PowerDVD 10 Ultra wouldn't play the "District 9" blu-ray on my Windows XP system and I got the error message "unsupported format".
2 - Were you able to play the "Slumdog Millionaire" blu-ray with an older version of PowerDVD Ultra on the same computer? If the answer is "yes" then you should submit a Tech Support request to CyberLink.
3 - Do you have the latest firmware in your blu-ray drive? If not, update it and see if that fixes the problem. Manufacturers are forced to periodically provide firmware updates and it is well-known that some discs will not play without the latest firmware.
4 - Restart your PC, disconnect it from the internet (and all networks) and turn off all unnecessary software---including all antivirus, antispyware, antimalware and firewall software. Then try playing the movie again. This will test whether another program is interfering with the operation of PowerDVD 10 Ultra. Remember to turn back on your security software before you reconnect to the internet or another network.
5 - As a last resort, you could install a program like SlySoft's
AnyDVD HD (
www.slysoft.com) that removes the security from the blu-ray disc as it plays. It may fix the problem and you can try it for 21 days before you buy it. This is what I finally had to do to get "District 9" to play on my system.
Kind regards, David