A direct access storage device that is written and read by light. The most common types are CD, DVD and Blu-ray. As removable media, optical discs superseded the earlier magnetic disk cartridges ...

Optical drives let your computer read and interact with discs like CDs, DVDs, and Blu-rays. While nearly every computer had them a few years ago, they're rare to see on new computers now. If you need ...

With a huge industry support behind blue-laser disc technology I would say this will become the next step in optical storage after DVD, compare 4.7GB and 9.2GB (DVDs) versus 20+ gigs of capacity for ...

Sony Corporation has developed a single 3-wavelength recording/playback optical head, capable of recording and playing-back 3 formats, Blu-ray Disc (BD), in addition to DVD, CD, which is a ...

TOKYO – Sony Corp. will launch a new optical disc format in November that allows for storage of up to 23.3GB per disc, the company said Tuesday. The format, called Professional Disc for Data, is being ...