BD may refer to any of the following:
1. Short for Blu-ray disc, BD or BD-ROM, is an optical disc format developed by thirteen consumer electronics and PC companies. These companies include Apple, Dell, Hitachi, Hewlett Packard, LG, Mitsubishi, Panasonic, Philips, Pioneer, Sony, Sun, and TDK.
Blu-ray was introduced at CES on January 4, 2006, can store 25 GB on a single-layer disc (50 GB on a dual-layer disc) and are the same size as a CD. The picture shows a blue laser in a Blu-ray disc player.
What did the Blu-ray replace?
Can a Blu-ray player read a DVD and CD?
Yes. A Blu-ray player is backward compatible and can read Blu-ray discs, DVDs, and CDs.
Can a DVD player read a Blu-ray disc?
No. Blu-ray is the newer, more advanced technology; a DVD player cannot read a Blu-ray disc.
Why is it called a Blu-ray?
The name Blu-ray comes from the blue-violet color of the laser that is used in the drive to read discs. This laser was unique to all prior disc drives because it used a blue laser instead of a red laser.
2. BD is also chat slang for a big deal.