2. Digital Betacam format
When Sony launched its Digital Betacam format in 1993, three digital formats already existed: D-1, D-2 and D-3. The first was an old format (nearly ten years old), and the next two met a limited-time need: to enable a "smooth" transition to digital for analog installations still working in composite - let's be clear about this - aimed more specifically at the North American market, where components had not made the breakthrough that had been achieved in Europe.
What's more, the 4:2:2 standard, which initially chose 8-bit quantization, has since migrated to 10-bit quantization, resulting in premature aging of the D-1 format.
The Society of Motion Picture and Television Engineers (SMPTE) has never published a standard for the Digital Betacam format.
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Digital Betacam format
DV format family
Bibliography
In Engineering Techniques
Standards
- Information Technology – Digital compression and coding of photographic still images: JPEG profile registration, SPIFF profiles, SPIFF tags, SPIFF color spaces, APPn tags, SPIFF compression types and registration authorities (REGAUT) - ISO/CEI 10918-4 - 08-99
- Information Technology – Coding of moving images and associated sound for digital storage media up to approx. 1.5 Mbit/s - ISO/CEI 11172 - 1993
- Information...
Organizations
Joint Photographic Experts Group (JPEG) http://www.jpeg.org
Moving Picture Experts Group (MPEG) http://www.chiariglione.org/mpeg
Manufacturers
(non-exhaustive list)
Panasonic http://www.panasonic-broadcast.com
Sony http://www.sony.net
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