Which is correct? I need help ASAP

Answer:
hi!
Explanation:
the answer is DVD AND DVA RW.
The DVD-RW is a type of rewritable or erasable DVD, which allows you to record and erase a certain number of times. The standard capacity is 4.7 gigabytes (GB).
The DVD is a Digital Video Disc that has a function of video recorder, sounds with great clarity in the video and sound. This is compressed in some cds with capacity for 8.5 gigabytes have equal measure to the cds of PC, music or video games.