Album Art howto

[Jeanc]

Hi,
I am confused as to how album art works.
I have got my music simply stored in a folder per artist.
So for instance I have a folder named Bach.
In that folder can be several albums, with naming convention
<Artist> <Album> <Song>.mp3

In every folder I like to put exactly one jpg, named after the artist / folder, so in this case Bach.jpg

However, this only works sometimes for some albums and most jpg's don't show up. I have them all resized to 96x96 and they are plain jpg's, no progressive stuff and the like.

And what if I want to have a jpg for every album, can I do that too with this tree layout?

What am I doing wrong?