I have the MediaStation™ 12x External USB 3.0 Blu-ray Writer - BR3D-12U3. I like the saving idea too, and bought a 10 pack of the, "Optical Quantum 6X 50GB BD-R Double Layer Logo Top - 10 pcs (MPN: OQBDRDL06LT-10)" I did read the short list of Blu-ray writers test for compatability on the RunTechMedia site. Our Buffalo burners were not tested. I can not burn video to the Optical Quantum BD-R DL with my BR3D-12U3. Every Verbatim BD-R DL I have used, about 30 disks, worked perfectly.
Most of the BD-R burners listed on the RunTechMedia site that are compatable with the Optical Quantum BD-R DL are not expensive. I am considering buying a compatable 12x burner listed for about $99.00. Then use the Verbatim for quality, and the Optical Quantum disks for fun projects, since most of those disks will go to family and friends. It will not take long for the cheaper disks to pay for the cheaper burner.
Eventually, the price of the BD-R DLs will come down. I find B&H Photo have the best prices for BD-R DL.
Good Luck with your Stuff!
David