Vivitar DVR 830XHD - Manual (Page 39)

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3. Once they are downloaded to the PC view them using QuickTime and
Windows Media Player.
4. Please insert an SD memory card of up to 8 GB to expand the memory
capacity of the camera.
5. When the internal
memory is full, a “Memory Full” message will flash on the
LCD screen when you attempt to shoot further videos.
Video Mode Functions