Funny really, I have a USP onto which I copied some albums. One album displays the album artwork but the rest do not. They are in Mpeg4 format.
Where do I find the artwork to tag to the tracks?
Update 19/5/2013
All working now, downloaded MP3TAG as suggested above, added artwork, saved tag, then synchronised with my USB drive in Windows Media Player, and Hey Presto, it all works.
Also found that by pressing LIST on the steering wheel, you can list by artist the by album and then by track if you wish. Great system,Edited by: exmgzr