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Definition of "HDCD" |
High Definition Compatible Digital is a digital encoding and decoding process for compact disc and DVD audio recording. The HDCD process manages to encode 20 bits of audio information into a conventional CD 16-bit channel, yielding a greater dynamic range and a more true-to-life sound when decoded. HDCD was developed by Keith Johnson and Pflash Pflaumer between 1986 and 1991, and made publicly available in 1995. / In information technology, a backup, or the process of backing up, refers to the copying and archiving of computer data so it may be used to restore the original after a data loss event. The verb form is to back up in two words, whereas the noun is backup. |
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