Really? NOTHING? hmm
Unlike SDTV, which has only one broadcast standard in the United States, eighteen digital options exist within the new U.S. DTV/HDTV standards.
Although it might seem these many different approaches would represent chaos, experts expect TV tuners will be able to sort them out automatically.
To recap, the standards vary in the following three ways.
* Active lines of resolution: 1,080 and 720 for HDTV; only 480 for SDTV (As we've noted, active lines differ slightly from total line figures, since we can't see some of the latter.)
* Types of scanning: Interlaced (two fields, each consisting of half the lines merge to make one complete frame or picture), and progressive (all lines transmit together without interlacing). Recall we covered this concept here.
*
Scan rate: 60 or 50 fields per second for interlaced, 30 or 25 frames per second for progressive, and 24 frames per second for film-style progressive scan.
We now widely use 24 fps in high-definition video production -- especially when a need exists to convert the results to film. Attack of the Clones, the Star Wars film release of 2002, was one of the first "films" done on 24-progressive video and then converted to film. Since that time, numerous other films have used the same technique.
So you are saying HD can be HD regardless of its frame rate hmmmm interesting. If it has NOTHING to do with framerate...
Hey can I encode HD at something other than H.264 while we are at it? Is that possible oh video wizard.. lol
