can't burn in 10.9.3

I have a quad core Mac Pro (3,1) with 12 gig ram, 4 TB space, sapphire radeon video card and a stock Optiarc dvd burning drive. with 10.9, I could burn stuff--cd's and the occasional dvd. now with 10.9.3 I can't do that anymore. My old burning program, BURN, doesn't work with Mavericks, and I have tried with SimplyBurns, Disco, NTI dragon burn

and even with Toast. Same thing. it gets ready to burn, tries to burn, gives me a sense error then quits. the dvd's I'm using are Verbatim DVD-R Azo's, if that helps anyone



thanks for helping me



John B

via ehMac.ca http://ift.tt/Ss5AeB