The outer ring in the Photoshop template could use updating. The current one has a nearly imperceptible bleed over at its furthest edges and the inner edge is a bit rough. Look how great both the outer & inner edges look on this disc. Now compare it to the edges in this excellent leepenny disc. Here is my proposed replacement, also in the spoiler. Assuming it passes muster, would love it if a Photoshop using mod could update the PS template with the new outer ring.
Looking at the create cdART in Photoshop tutorial the PS template is using layer masks for the different holes & split rings. If a Photoshop user would be so kind to export the masks themselves to pngs I could & would setup the GIMP template in a similar fashion, thanks.