Comment Re:Patent upgrade treadmill (Score 1) 194
if it is impractical to deploy a new codec in the field alongside the existing codecs, a first mover will win. This is why U.S. OTA digital television is stuck on DVD/SVCD era codecs, but some countries whose digital transition happened later use H.264.
It's not true that H.264 is significantly better than MPEG-2 video, when used at high bit rates as in HDTV. Every video codec developed since MPEG-2, and every audio codec developed since MPEG-1 Layer II, has been focused on low-bit rate video that needs to look good, but doesn't need to actually be identical to the original.
This is because the first-generation audio and video codecs already got quite close to the theoretical limits of perceptual entropy, so there is NO room to double the efficiency while still making it indistinguishable from the uncompressed original. There's still tons of headroom, however, to make something low bit rate that just looks "good" and comprehensible without obvious distracting artifacts.