The highest video resolution supported by the DSC-HX30V is 1920 x 1080 pixels. That's over six times the video resolution of a 640 x 480 pixels camera, which is the most common video resolution supported by comparable spec digital cameras that have been around for more than two years. 640 x 480 pixels is also supported by this camera. In addition, this Sony camera support a video resolutions of 1280 x 720 pixels and 1440 x 1080 pixels. 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.
A 1920 x 1080 pixels video resolutions is in fact the best supported video resolution across all high megapixel cameras that have been available for a comparable time to this digital camera.
A 320 x 240 pixels video resolutions is the worst supported video resolution amongst comparable types of digital camera.
What does "video resolutions" mean?