The highest video resolution supported by the Olympus VH-520 is 1920 x 1080 pixels. That's over six times the video resolution of a 640 x 480 pixels digital camera, which is the most common video resolution supported by digital cameras that have been on the market for a similar time to the VH-520. 640 x 480 pixels is also supported by this digital camera. A video resolution of 1920 x 1080 pixels is equivalent to Full HD video. You will require a Full HD TV or better to appreciate this level of detail.
This digital camera's video resolution (1920 x 1080 pixels) is in fact the best supported video resolution amongst all compact camera digital cameras that have been around for a similar time to the VH-520.
The worst supported video resolution across comparable types of digital camera is 320 x 240 pixels.