Pioneer BDR-X13E-S Owner's Manual page 26

Problems and Solutions
an audio format not supported by your playback software. Check the audio format
recorded with the BD/DVD-Video title, and switch to a supported audio format (surround
sound, etc.).
• Media and files such as videos from BD/DVD-Video and digital broadcasting include
content protection, and have restrictions on copying and playback. Check that there
are no restrictions on the content to be played and on the playback environment.
• For detailed information on Ultra HD Blu-ray playback, refer to the website below.
https://pioneer-blurayodd.eu/products/bdr-x13e-s/index.php
The Intel Software Guard Extensions (Intel SGX) feature is a requirement for the
CPU and motherboard firmware to play DRM (digital rights management) protected
content on Ultra HD Blu-ray movie discs on a Windows
Note
Intel SGX has been removed from Intel 11th generation and newer CPUs, and
support for SGX may be removed on new versions of Intel drivers or utility programs
such as Intel SGX and Intel Management Engine drivers and firmware in the future.
Such changes could cause these platforms to lose support for Ultra HD Blu-ray
movie disc playback.
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platform.