Each compression codec provides its own codec-specific configuration dialog, which should be documented by the codec provider. Therefore, it is beyond the scope of this guide and the online help to describe detailed codec configuration.
In general, the most important factor to consider in video conversion is the bit rate. As a rule, the higher the bit rate, the better the video quality, but the file size also increases accordingly. Many codecs support both Constant and Variable bit rate encodings. CBR encoding is better suited for streaming downloads, where the download bandwidth is known in advance. VBR encoding varies the encoding bit rate to match the level of screen activity. This can result in smaller video files, with no reduction in quality.
VBR encoding works by assessing the level of video activity during the recording to determine what bit rate to use. However, this assessment is usually not tuned to detect activity typical of screen-capture video. Therefore, the quality of some recording conversions may suffer when using VBR encoding.
For best conversion results, we recommend trying several codecs and comparing the quality and file size.
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