I tested it with 90min CDRs and st first it did not work.
It stoped at 98% so I upgraded the firmware and it worked...it plays on my Apex600aDVD Its an eVCD using TMPG and Sefy's template. The movie is 1hr 38min and 14sec long. All I change is audio to lowest setting in TMPG. The firmware I upgraded is on Acers web site it is 8.JZ. HOpe this helps all. We need to get a list of 90-99min compatable burners.