I actually have my own cover art question, I spent yesterday getting cover art for all my albums, and some of the ones online were like 1400x1400, with no other available. I was wondering if MediaJukebox, could have a .jpg compressor for the cover art... so you can define the size you want, and the quality percentage, maybe even a target file size... and some crop options. I personally like 500x500 at about 80kb.
This way the cover art will all be around the same size even if they are from a larger source. I had some cover art that was almost over a megabyte and had to go through manually compressing and adding about 10-20 albums worth.
Also in the internet cover art program. It would be nice to be able to drag around and add other cover art to the list. Both from a folder on the computer, maybe a url, or from 'disc 1' of an album. I have a few cases where the cover art is identical for both discs, but the online lookup found a less quality version for 'disc 2', would be nice to drag the one from 'disc 1' over.
Just a couple of ideas I had anyway. This program really is great for library management, and more.