PowerDVD displays "Critical update for PowerDVD!" message when you are notified every 14 days if there is a new patch available.
Blu-ray Disc and HD DVD titles have adopted AACS (Advanced Access Content System) to protect the digital content. AACS keys are required to play some Blu-ray Disc and HD DVD titles. AACS keys were integrated into your PowerDVD for copy protection purposes. Occasional renewal of the AACS key is required.
Click “Click here for more information” on the message dialog to connect to the CyberLink Web site and download the updated version of PowerDVD for AACS key renewal.