When I import the HD clip with the media standard set to 525i 29.97 (16×9) the image doesn’t look good – it is very crawly and the colours are oversaturated. Also there appears to be 2 sets of Audio Tracks (ie. under the little speaker in the bin thumbnail it says A1A2 twice. As well as there are 2 A1A2’s in the channel mapping.) When I try to drag this clip onto the NTSC 525i 29.97 (16×9) timeline it gives me an error message until I disable one of the identical sets of audio channels. Very strange.
When I import the HD clip as is (Apple ProRes 4:2:2), then drag it (and conform) onto the NTSC 525i 29.97 (16×9) timeline it looks exactly like it should…great.
It also takes much more time to conform the file than importing.