I've used ffmpeg on Linux for years to convert nearly anything AV to nearly anything else AV.
I hadn't even thought to look for it on Windows, but a few days ago, whilst searching for something, I found an ffmpeg.dll in the BB file tree.

Linux, Windows, Mac.
Command-line, which may worry some.


Jazz relative beginner, starting at a much older age than was helpful.
AVL:MXE Linux; Windows 11
BIAB2025 Audiophile, a bunch of other software.
Kawai MP6, Ui24R, Focusrite Saffire Pro40 and Scarletts
.