I don't have a 4300, but a UK model IP4000. (much the same print engine) I use the Canon printing program and am happy with it. I have a template saved for each of the disc types I use.
I use the default disc printing settings with "vivid photo" effect and manual color settings. (ICM and a small intensity boost).
I'm still working on getting settings down for TY silver printables, but similar settings seem to be a good start.