Don't use regular adhesive labels as doing so may affect the ability of CD-ROM drives and CD players to read your disk since the label may cause the disk to be off balance. These labelers center labels uniformly on one side of the disk. The label covers the entire disk. Labels can be designed with artwork, photos, etc. Do not try to remove a label once it is applied as it will damage the recording layer and possibly your CD-ROM reader.
Computers being sold now often come with a DVD-ROM drive.
If you have a DVD drive which has an MPEG2 decoder, you can watch DVD video disks.