The only conclusion reached in the threads on how the media player handles tags is that nobody has any idea how the media player handles tags.

I didn't buy my N900 just to replace my iPod Touch, I bought it to replace it in addition to the mobile computing aspects. If there is something that I know about every single PC that I have ever owned is that I could always find dozens of media players which did a better job that any dedicated PMP out there. There is just no good reason to excuse Nokia for releasing this half-assed media player, keeping it closed-sourced and without the ability to write plug-ins and giving no indication of wanting to improve it in the near future.

And frankly, you coming here and dismissing outright any sort of criticism is not helpful.