DVD (digital video disk)
- DVD gives 4.7 GB of space.
- Large files are saved to DVD.
- We can install Windows in DVD.
- Movies and heavy video files can be saved to DVD.
CD (compact disk)
- 700 MB of space is provided in the CD.
- Small files are saved in CD.
- We cannot put Windows in CD.
- Movies and heavy video files cannot be saved on CD.