Unless the FCC reversed itself with more recent rulings, when they adopted the FCC rules they adopted A/53 in total with the exception of table 3. 720x480 can legally be used in broadcast ATSC, however it is caveat transmitto. John ----- Original Message ----- From: "Craig Birkmaier" <craig@xxxxxxxxx> > Mark worked > unsuccessfully to get the ATSC to allow a simple addition to Table 3 > - i.e. 720 x 480 in both pixel aspect ratios. For those who may not > be aware, Table 3 only allows 704 x 480 formats. This simple, MPEG-2 > conformant change was vetoed in the ATSC because some early decoder > implementations were "hard wired" to Table 3. ---------------------------------------------------------------------- You can UNSUBSCRIBE from the OpenDTV list in two ways: - Using the UNSUBSCRIBE command in your user configuration settings at FreeLists.org - By sending a message to: opendtv-request@xxxxxxxxxxxxx with the word unsubscribe in the subject line.