Quick question about firmware on liteon site

Hi all,

Been out of it for a while but went on to liteon site earlier to check for new firmware for my 811s.
The site has the firmware update titled in red letters as dvd dual firmware are they referring to the plus, minus side of things or has something changed as far as copying dual layer discs with this writer.

Yes it just means + and - media burning capability.

Thanks for your quick reply.