DVD-RW DVD-RW discs can be used by some operating systems like MS Vista as regular recordable discs, meaning that you cannot alter what is recorded on them without erasing and recording new alter version of the same file. They cab be also used almost identically as hard drive, where you can record for example MS Word and alter it by opening it by Word application. In situation when you are using it as hard drive (or old fashion floppy disc for that matter), it has to be formated before such use.
Yes
There would be no point in making a consumer DVD burning drive that cannot read discs like a regular drive.
2 choices: First, you've placed a wrong formated Disc into the unit, or a CD instead of a DVD... Second, the unit doesn't have a Disc installed, or it's just "dead" and can't read any Formated Discs...
no, these are two separate pieces of hardware that will need to be bought seperatly
Yes.
Draft
Cdrw dvdrw
txt features
DVD = yes DVD-r = both dvdrw= both
You would need around 73 discs to equal 51GB, as 1GB is equal to approximately 1024MB. So, 51GB is equal to about 52,224MB (51 * 1024), and therefore you would need about 73 discs of 700MB each (52,224 / 700).
No
use them as frisbies