Create PDF/A document with LibreOffice

Have you been asked to provide a particular document not only in PDF format, but specifically in PDF/A? You are in luck as you can easily create PDF/A with LibreOffice.
As you probably know, PDF is a standard for encoding documents that is portable between systems. Then, if you are wondering how PDF/A differs from “conventional” PDF, according to Wikipedia:

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Play H265/HEVC videos with VLC on Ubuntu

VLC is a multimedia player so versatile that it can virtually open any multimedia file available … but, as you may guess, that “virtually” actually imply that there IS a limit.
For example if you try to play a video encoded in HEVC (also known as H.265 and MPEG-H Part 2) with VLC on Ubuntu, you will get the following error:

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