When enabled, Pro Tools decompresses both fields of each interlaced frame of QuickTime video. When not enabled, Pro Tools only decompresses one field of each frame for “half-res” QuickTime playback.
When viewing a QuickTime movie in the Pro Tools Video window, select this option to display the movie at the highest possible resolution. For interlaced video that was transcoded from a progressive source, enable this option for a crisper image. Deselecting this option can help improve performance if your system experiences problems playing back a session with QuickTime video.
When selected, Pro Tools automatically stops playback of audio and video if a single frame of video is dropped.
When not selected, Pro Tools continues playback of audio even if frames are dropped. In most cases, video playback will recover within a few frames and continue playing audio and video in sync.
This preference lets you adjust the level of NTSC video black output between 7.5 IRE (standard) or 0 IRE. When this option is selected, output level is 0 IRE.