b

Bit (as in Mb = Megabits)

B

Byte (as in MB = MegaBytes)

B-frame

Bidirectional-Frame (used in MPEG compression)

BB

Black Burst

BBC

British Broadcasting Corporation

Beta

Abbreviation for Sony's "BetaCam" videotape format

Beta

Software still in test

BITC

Burned-In Time Code

BNC

Bayonet Normalized Connector

BRR

Bit Rate Reduction

bslbf

Bit string, left bit first

BW

Bandwidth