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Media Format Specifications
Digital TV (DTV)
Digital TV is a broadcast video and audio standard that uses digital signals. It provides
significant advantages and improvements over conventional analog technology.
There are two versions of DTV: standard (SDTV) and high definition (HDTV). SDTV
allows stations to broadcast multiple programs within the same bandwidth. While SDTV
delivers signals superior to that of analog TV, HDTV is a magnitude of quality beyond it,
displaying sound and images surpassing anything available in today’s home systems.
Format Scan Lines Scan Range Pixelization Frame Rate Aspect Ratio
480 active (60i) 60i
525 total
DTV
480 active
31.5 kHz
(60p)
720x480 24p, 30p, 60p,
or 60i fps
4:3 or 16:9
750 total
720 active
45 kHz (60p) 1280x720
1125 total
HDTV
1080 active
33.75 kHz
(60i)
1920x1080
24p, 30p, 60p 16:9
Divx Format Definition
DivX is a digital video compression technology based on MPEG-4 and developed by
DivXNetworks,Inc.; do not confuse this acronym with DIVX (digital video express ),a
DVD-ROM format endorsed by major movie studios that tracks and enforces strict copy
protection standards.