I'm pretty much happy with Windows Media Player - and yes, it's still there under Windows 10. I recognize the program's weaknesses and work around it. Like "lonely bull" above, I sometimes get an album showing doubled tracks, and yes, the solution is to change the album title for each iteration to something unique. I must have five different versions of WARM floating around on my computer's disc - iTunes files, WMA files, HAPresents versions, early CD-Rs, etc. And for albums that I have in both mono and stereo, I separate them out with a suffix for the title, and try to append each track title with [mono] where necessary. That way, when I sort files in Windows Media Player by song, I can identify the mono versions easily.
Harry
Harry