is it liteon 811S or somethnig else?
tnx
No, it’s actually a Plextor 708a on the inside as well.
Lol 
The Plextor PX-504A was based on a NEC but the 708A is a ‘real’ Plextor drive. It was the first drive to support 8x DVD+R recording so there was no drive to base it on in the first place 