I have a series of singles in MP3 format that have their covers embedded in their tags (by mp3tag), but, try as I might, I just can't get them to show up in the N900's media player. The covers are in jpeg format, and are 600x600, and show up fine in Winamp.

What am I doing wrong?

I've used Mussorgsky to grab external album covers, and that works, but these are singles, and as such, don't have the album field specified.

What is the N900 media player supposed to support?