The discs you linked to are not inkjet printable, of course. There's one Silver inkjet DVD+R DL available. It was being sold at Supermediastore up till recently.
Falcon DVD+R DL Silver Pearl inkjet, here. Used with the right images, they produce a 3D effect making the result look quite impressive.
If you'd like help locating them locally, contact fred.perez@falconrak for assistance or info.
Verbatim would be a good choice for non-printable.