It also includes the alternative 1440×1152 HDMAC scan format. (According to some reports, a mooted 750-line (720p) format (720 progressively scanned lines) was viewed by some at the ITU as an enhanced television format rather than a true HDTV format, and so was not included, although 1920×1080i and 1280×720p systems for a range of frame and field rates were defined by several US SMPTE standards.) COUNT 4
QSN1 What scan format is also included in MBAFF? ANS1 1440×1152 HDMAC QSN2 What was viewed by some as enhanced television format and not true HDTV format? ANS2 a mooted 750-line QSN3 A mooted 750-line was seen by some at the ITU as what? ANS3 an enhanced television format QSN4 What were 1920x1080i and 1280x720p defined by? ANS4 US SMPTE standards