Depends on the application, In broadcasting for example bandwidth is painfully expensive, hence the shift from MPEG2 to h.264 for consumers (although in the US

Depends on the application, In broadcasting for example bandwidth is painfully expensive, hence the shift from MPEG2 to h.264 for consumers (although in the US its much more complicated as everyone seems to recompress everything badly on TV. Its like watch a pirated copy.) It just takes a long time to get from approval to acceptance. The other problem with JPEG2000 is that its not really a motion codec, so it doesn't degrade well over lossy links without special sauce. All of which is non standard.