Appendix B. Bit Budgeting
There’s one constant in the world of DVD-Video authoring—the size of your target DVD disc. Although the duration of your video may vary, in the end you have to squeeze that video onto a disc with finite space. This forces you to make some hard choices, because as video duration increases, you must decrease the encode quality in order to reduce the video’s file size to make it fit on the target disc. This is where bit budgeting lends its talented hand.
If you have less than an hour of video on your disc, there’s no need for a bit budget. An hour of video encoded at 9 Mbps will have a resultant file size of under 4 gigabytes (GB) (9 Mbps is the highest bit rate setting offered by the QuickTime MPEG encoder). In everyday ...
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