I don't know what's going on but suddenly the light on my pioneer 104 shuts off.

for nero it shuts off after about 1 minute, but timer still runs and buffer stays at 100%. Completion % never changes and it still says Lead In

for Recordnow max, it never switches to its real time. isos they at first prints 13 minutes but after 1 minute switches to actual time.

intially thought it was bad 104 drive, went and bought an a05 problem still there.

what is causing my problem?