Difference between cd and DVD

1.	Difference between cd and DVD
Answer» A Digital Versatile Disc or Digital Video Disc (DVD) is similar to a CD-ROM in that you can only read data from it. The main difference is that the DVD can store much more data than a CD-ROM, CD-R, or CD-RW. A DVD-R can only record data once, then the data becomes permanent on the disc.

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