FOCUS Enhancements 3.2 - Manual (Page 77)

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Timecode:Displays the current timecode within the playing MPEG
file offset so that all files start at 00:00:00.
File Type:Displays the type of MPEG file being played on the
channel. The possible types are: mpeg1 - mpeg1 system stream,
mpeg2 - program stream, mpg1v - mpeg1 video only, mpg2v -
mpeg2 video only, mpg1a - audio only, ac3 - ac3 audio only, ??? -
unknown type or no file loaded.