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 Dell, Hitachi, Hewlett Packard, LG, Mitsubishi, Panasonic, Sony, and TDK. Blu-ray was first introduced at the CES on January 4, 2006 and can store up to 25 GB single-layer disc and 50 GB on a dual-layer disc, each disc being the same size as a standard CD. The picture shows a blue laser in a Blu-ray disc player.
Today, Blu-ray was first backed by Apple, Dell, Philips, Pioneer, Sony, Sun, TDK, and other companies mentioned above. On February 19, 2008 Blu-ray beat out HD DVD in the high-definition disc format wars on after HD DVD called it quits.
What did the Blu-ray replace?
2. BD is also chat slang for a big deal