Help me, Could not perform endsession error

Hi,

I’m newbie here. I’d appreciate your kind help.
I was trying to use Nero (came with my Memorex external burner USB 2.0) to burn DVDs yesterday but fatal errors occurred at around 6-8%

The error message was:

Drive not ready Memorex DVD+R/RW 2.4x 8AA
Could not perform endofsession
Burn Process failed at 2.4x

I used Memorex 4x DVD+R media
The firmware version of the burner is 1.51

Is this a media/software or hardware problem?

Thanks :bow: