Nice app, but what it doesn't do well is compressing the original iTMS files. With Photoshop I can export perfect copies of the images under 100k, while Corripio makes files 400, 500k, which is unnecessary big and increases a 4MB song by over 10% . If the compression would work as good as in Photoshop, it would be the nr.1 app to use for your artwork.

Also, when there are several images available for a song, it's not clear which one is selected when you click one (with the system-wide used light blue box around the pic fx). But it will select the picture you click on, though.