For business, you shouldn't use Lightscribe anyway since not only can you not get them without hub branding, but LS labels are prone to fading and degradation and would require (excessive) care by your customers/target audience.
For business use, I would recommend either an inkjet disk printer + Taiyo Yuden Watershields, or some kind of thermal printer + discs.
Edit: when shopping for inkjet printable discs, look out for the terms "Full Face Printable" and "Hub Printable" as these signify a fully printable, unbranded surface.
In any case, Taiyo Yudens are NEVER branded, unless they're explicitly sold under their brandname That's (Japan only) or that of an OEM customer (rare).
If you tell us where in the world you're located, I can point you to some good online stores that will have exactly what you need.