Lite-on sohw-812s dual layered?

Hey I bought lite-on sohw-812s awhile back and to be honest actually haven’t used it much. Mainly just for backing up files on DVDRW.

I was wondering does this drive write to the 8.5 DVD+R DL discs?

Are these erasable?

Thanks for any information.

you can cross flash your 812s to a 832s with firmware from here. and DL discs aren`t eraseble.