A DVD is a disc that stores digital information such as movies, music, TV shows, and games using lasers and tiny bumps arranged in a spiral track. It was developed by Toshiba, Philips, Sony, and Matsushita Electric and can store much more data than a CD in a different format. DVD players use electricity to power a laser that reads the data on the disc layer by layer. DVDs come in different storage capacities and new formats like Blu-ray can store even more data than early DVDs. The DVD brought digital media storage and playback into mainstream use.