## L

letterbox
  DVD-Video display format in which the video is sized as large as possible inside the display window, without any cropping or stretching. See DVD_PREFERRED_DISPLAY_MODE.
Linear editing
  A method of editing program material where the final product is built cut by cut in a sequential or linear fashion. Changes to any edit require re-recording all of the succeeding edits or using the recorded master as a source. These systems are found at the very low end and very high end of the editing equipment market. They are comprised of a control computer, video tape recorders and switchers, and generally do not provide random access disk-based storage of source material, although connection to a digital disk recorder will provide limited random access capability.
LTC
  Linear Timecode (formerly known as Longitudinal Timecode). Timecode is stored on a separate audio track and is one video frame time in duration.

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