1633 cd-r burning quality

I had to send to a professional duplication factory an audio cd-r burned with my 1633S BS0S, and none of my 10 burns (different speeds, different medias) was readable for making the “glass master” in the factory !
All my burns show C1 errors >30 ! :a
(My old Cyberdrive 16X cd-burner do it better !)

Is there any firmware to improve cd-r quality for 1633 ?
Thanks, and sorry for my english… :o

That’s strange!!! BS0S is better for cd burning!!!
The burn bellow was done with my 1633S@1653S CS0P, and the media is a very cheap one (Brand Omega) done at full speed;

csom and good blank cd’s make good burns for me