ViewSonic VPD400 User Manual page 19

Enjoy Life, Enjoy ViewSonic
answer within the specified time. If you choose "No", the playback will
start from the beginning.
Video sub-menu ———————————————
Press
following: Playback options, zoom, file information, power information,
video enhancement, show subtitle, subtitle list, an LCD brightness.
1: Playback options are: only once, repeat one, repeat all, sequence,
random.
2: zoom options: full-screen (maintain aspect ratio), full-screen (stretch),
original size.
3: File Information: file name, file size, file format, encode format, frame
rate, sample rate, and resolution.
ViewSonic
button on the video pop-up menu, the video sub-menu has the
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VPD400/VPD500