Useful guides and tutorials related to codecs and multimedia.

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

What DeepSeek V4 is now, the four ways to run it including on your own machine, and an honest answer on what the free price actually costs you.

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

A verified 2026 list of where to download free ebooks legally, plus how to fix the files that arrive in the wrong format.

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.

A parent's guide to the free drawing and design tools that actually suit each age, with the popular recommendations that no longer hold up.

A plain comparison of every Bluetooth audio codec worth knowing in 2026, and an honest answer on when the choice actually changes what you hear.

MX Player is a versatile video player and streaming platform that offers a wide range of movies, TV shows, and original content, making it a popular choice among users.

An honest look at two very fast lossless codecs, what they genuinely beat, and the two support limits that decide whether either one is for you.

A plain-English answer to whether H.264 is finished in 2026, and the point at which HEVC, AV1 or AV2 is actually worth switching to.