Useful guides and tutorials related to codecs and multimedia.

A plain-English explainer of Eclipsa Audio, the open IAMF-based rival to Dolby Atmos, covering where you can hear it and how to play the files on a PC.

A troubleshooting guide to the four locks on a DVD - CSS, region codes, RCE and PAL/NTSC - and the free tools that get past them.

Game Ready or Studio driver, what actually differs between them, and how to switch in the NVIDIA App now that GeForce Experience has been retired.

There is nothing more easy! Open the movie with Media Player Classic and choose...

A step-by-step walkthrough for converting audio to Opus in MediaHuman Audio Converter, including what to convert from.

Whether the MP3 encoder that everything else runs on is still the right choice, now that it has started shipping releases again.

A reference list of four-character codec codes, with what each one means and why MP4 files do not use them.

A one-minute walkthrough for finding your phone's Bluetooth codec list, what a greyed-out entry means, and why your choice keeps reverting.

What the avc1 tag in an MP4 file actually means, how it differs from avc3, and how to read the profile and level string that comes after it.

Where the installed codec list lives in modern Windows, and why it shows far less than is actually on your PC.