I have a stock 3550a with the standard 1.05 firmware. I’ve been able to burn double layer Ritek +R disks with no problem at 2.4x.
I recently got a batch of 4x Ritek -R disks and can’t burn the darn things. I keep getting an Illegal disk error in Nero (6 or verison 7) even if I try burning them at any speed. I’ve tried other burning software (IMGBurn, etc) with the same results.
The media code is RitekP01 and I assume the firmware needs an update to support it. Anyone know what version of the firmware supports this 4x double layer media?