About CD/DVD ROM Optical drive?

Optical drive must be installed for CD/DVD reading and also write too.Almost laptop have installed already.Nowaday DVD Rewriter is a basic device but you must sure that you will get a right drive because each drive has their difference.

DVD-ROM – is a basic drive which can read CD and DVD only.
DVD/CDRW Combo – is a type of read DVD and also write CD and CD Re-writable.
DVD?RW Super Multi – this type can write CD ,DVD+ ,DVD- and also DVD RAM too.
DVD?RW Double Layer this type can write 2 layers of DVD- and DVD+ up to 9.4 GB but normal disc can write only 4.7 GB.
DVD?RW Super Multi Double Layer – It's like Double Layer Drive but can be also write DVD-RAM too.
DVD?RW / BD-RE Blu-Ray Super Multi Double Layer – It's like Super Multi Double Layer Drive but is compatible with Blu-Ray DVD too.
DVD?RW / HD DVD Super Multi Double Layer – It's like Super Multi Double Layer Drive but is compatible
HD DVD technology too.