I use winamp 2.91 on Windows 10 as my main music player. It works fine except .wav files have clipping/static which doesn't occur in other players, and some newer formats are not supported. But still works great for flac (with a plugin) and mp3. I use the double size feature so it's not tiny on a 4K HiDPI monitor.
I modified the embedded app-manifest inside Winamp.exe because Winamp incorrectly claims to support high-DPI mode. After patching that I’m able to use Winamp on my 200% displays without turning on Winamp’s built-in pixel-doubling.
Noting that I don't use winamp, and haven't since I found foobar2000 back in ~2004... I would not even notice that as an issue. The last time I had a .WAV I needed to play was in Windows 95.
WAV is to audio as BMP is to images: the fundamental, brutal, unsophisticated, first-effort approach that also, coincidentally, because of its brutality, somehow simultaneously represents an apex of fidelity and impracticality.
All other image formats get parsed to recreate either an identical or approximate bitmap as would have been encoded into the BMP file, but usually with more features or smaller size, or both.
All other audio formats get parsed to recreate either an identical or approximate audiowave as would have been encoded into the WAV file, but usually with more features or smaller size, or both.
BMP has the ability to hold compressed data too; for example they can hold JEPG and PNG compressed images. I don't think it has the ability to hold arbitrary data though.
One case is DJ equipment - FLAC support wasn't standard for a long time so DJs may be forced to stick with WAV to be sure of compatibility with the pro kit installed in clubs.
Also now that many sources provide 24bit audio you need to check for that and resample to 16bit to be certain it'll work.
