I to modify ~/.gimp-version/scripts/CDlabel.scm with gedit
[joe@localhost ~]$ su -
[root@localhost ~]# gedit ~/.gimp-version/scripts/CDlabel.scm
** (gedit:9064): WARNING **: Hit unhandled case 1 (File not found) in gedit_unrecoverable_saving_error_message_area_new.
Making a basic CD label shape from http://www.shallowsky.com/software/cdplugins/
My CD label script-fu, CDlabel.scm, gives you the basic CD shape (in <Toolbox>/Xtns/Script-Fu/Misc/CD label...) (outer circle with inner hole of the appropriate size -- it knows about regular and mini CDs), on which you can draw whatever you wish. It also adds a script in <Image>/Script-Fu/Utils/CD mask... which you can use it as a mask, applied to some other image.
To install, just save CDlabel.scm to ~/.gimp-version/scripts/CDlabel.scm
There's also a version, CDlabel2.scm, which is updated for Gimp 2.0 but will no longer run in gimp 1.2.
The easiest way to go is to design your CD, save it to a png (or some other format that preserves transparency), then read it in to gLabels for printing (let gLabels handle the offset and the database of label sheets).
Any help would be appreciated Joe48