National Film and Sound Archive > Preservation

Technical Glossary of Common Audiovisual Terms

D1 Digital Video

Description

Component video in a 19mm digital cassette format.

Explanation

A format for digital video tape recording working to the CCIR 601, 4:2:2 standard using 19mm wide tape, allowing up to 94 minutes to be recorded on a cassette.

Being a component recording system it is ideal for studio or post production work with its high chrominance bandwidth allowing excellent chroma keying. At the same time multiple generations are possible with little degradation and D1 equipment can intergrate without transcoding to most digital effects systems, telecines etc. There are no colour framing requirements.

Despite the advantages, D1 equipment is not extensively used in general areas of TV production - at least due to its high cost.

Reference:
Quantel Digital Fact Book Edition 7
CCIR Rec. 657-2
EBU Tech.3252

To be sure of the best care of your audiovisual item you may wish to seek
specialist advice or email us at preservation@nfsa.gov.au.

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