I just made 2 tries at burning a Sony 1-16X D21 +R jewel cased media but both attempts failed when 'Create Disk’stopped and froze up.This stuff is AccuCore and made in Taiwn.
On the first try it got about havf way through the burn and was at about 12X and climbing when it suddenly dropped to 8X and stopped a few seconds later.
The second attempt at burning got only to the 120mb point and froze.
The burning time clock continued to advance during both after the burning part froze.I needed to use Windows task manager to shut down Nero.
All other media(10) 4X,8X and 16X that I’ve burned since purchase has not caused any problem using the H30N.
I don’t have another Sony 16X +R or I’d give it one more try.