DVD drives

A DVD is very similar to a CD, but has a much larger data capacity. An average DVD holds about seven times the data that a CD does, and has the ability to hold large files such as movies.

DVDs look almost identical to a CD and is made up of some of the same materials. Much like a CD, the data on a DVD is encoded in the form of small bumps on the disc.

DVDs can store more data than CDs for the following reasons:

• Higher-density data storage
• Less overhead, more area
• Multi-layer storage

As with a CD, you will need specialized computer software to burn your data onto a DVD. However, for most computers this technology is sold on the same equipment. In other words, if you have a CD burner, you most likely have a DVD burner as well.