Also re: films on DVD.
It seems to be agreed that we can use: 345 ## $a laser optical $b NTSC To indicate the video format of DVDs even though they are digital not analog. But where to put aspect ratio? Can we use: 345 ## $a16:9 $b 24 fps or (for PAL) 345 ## $a4:3 $b 25 fps John Williams Robert H. Evans Library Bologna, Italy http://www.sais-jhu.edu
