Effective January 31, 2020 Sony will stop distribution of AACS Key for WinDVD BD ver.10 for Sony VAIO computer systems. As a result, some Blu-ray Disc titles cannot be played back on VAIO computers.
WinDVD BD ver.10
We apologize for any inconvenience this may cause and appreciate your understanding.
* Sony had already stopped distribution of AACS Key for WinDVD BD ver.8.x since April 30, 2017.