Average asset size


    Use the following averages for bit budgeting:

    Audio

    If compressed using the Dolby Digital Stereo standard, audio is generally 192,000 bps (0.192 Mbps). Use 0.192 Mbps or reference the settings for the audio encoder you plan to use.

    Subpictures

    Insignificant in terms of bit budgeting, unless you include subtitles. If you do include subtitles, use 0.010 Mbps per subpicture stream for calculations.

    Motion menus

    Typically have a data rate of 8 Mbps for the transcoded video; add this to the audio data rate. (If the video is already DVD-compliant, then it won't be transcoded and you should use the data rate of the video file.)

    Still menus

    Insignificant in terms of bit budgeting and can safely be left out of the calculation.