The default nobody chose
Insert a CD into a Windows XP machine, click Rip, and Windows Media Player quietly wrote WMA files — its own format, not MP3. Millions of music libraries were built that way and later marooned: modern phones, Macs and browsers mostly refuse WMA, and the format has been fading since Microsoft itself moved on.
The decoder lives on inside FFmpeg, and this tool runs it in your browser: drop the old library, collect MP3s that play on anything made this century. Old rips tend to live on backup drives next to family photos — nothing here is uploaded anywhere.
Copy protection, the honest caveat
Some tracks bought from 2000s music stores carry Windows Media DRM. Those do not decode — the license servers died with the stores — and this tool fails them cleanly instead of producing noise. Your own CD rips have no DRM and convert fine.