"Illegal Block Size" error

When burning normal Audio CDs I"ve been getting a lot of coasters lately, and the error displayed usually is “illegal block size for command” followed by “could not perform endtrack” and “invalid write state” and “session fixation error”

Any idea what’s going on? I’m using Nero Enterprise edition 6.6 with an LG GSA-40 8018B, dvd rom burner.

These errors started happening all of a sudden for no reason, I’ve burned about 20 CDs on this burner no problem most using Nero too.

I even updated the firmware for the burner, is it a software or hardware problem?