we need better codec's... heck Microsoft's WMV codec preserves great picture quality in HD and uses less space then MPEG-2... and MPEG-4 would be the best if you wanted a largely used standard... why in the world are we still using MPEG2? There are much better codec's out there for vidoe compression... DirectTV has the right idea, cable should follow for digital channels.
Because MPEG-4 isn't part of the ATSC or Digital Cable Ready (DCR) standards.
