I was told you can read/burn DVDs on your CD burner by adding Nero 7.0 software. Don't you need a DVD burner?

You have to have a DVD burner to burn DVD's/ Nero will burn DVDs, if you have a DVD burner

You do need a DVD burner to burn DVDs. A CD burner can only burn CDs, but a DVD burner can burn both CDs and DVDs.

The software you use will have no impact on this as it is reliant on the hardware and not the program you use.

The point is it's telling you that Nero 7.0 will write CDs to a CD burner and DVDs to a DVD burner; old versions of nero only wrote CDs

Burning DVD requires that you have a DVD burner installed in your machine. A CD burner will not burn DVD's.

You can only burn CDs with a CD burner, no amount of software will turn it into a DVD burner.

Set the configuration of NERO when you will click Neo icon a window will open on the top centre set Cd or DVD, if you want to burn CD then set CD then set other configuration bootable disc, data disk, etc. then it will burn CD.

Yes, you are rite. You need a DVD burner to burn DVD's.

right a dvd can onl ybe used in a dvd drom drive unless u have a combo drive thta will do both burn dvd and cd

Yes you would to burn DVDs.

If you don't have cd/DVD-R/W forget burning anything.