Just to clarify, are you implying that:
1) listing in numerical order by album, and
2) having an artist/album category and/or a genre/artist/album category
is a patented thing that no one is allowed to do? So winamp, foobar, musicbee, and every single other open source application on the face of the planet are all in gross patent violation right now because they are doing this correctly? Also every single player on android? Also every player thats been released since 1999? Also windows phone applications?
Because thats what it sounds like you're getting at. And at that point i'd have to say you're straight up wrong. This has nothing to do with patents.
ROCKBOX SUPPORT is a patenting/warranty issue. The little tweaks im talking about is something else. Its laziness.
I had not read the very post you were referring to at the time of my posting, i completely missed that page.
I did say, however, that some patents cost a lot of money to implement into your system, and for some companies it's too much.
Here's one of the patents that will, as i understand, give us the hierarchy as we want, but i would bet you $5 that it costs more than $5 to use/implement it.