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Apple DVD Studio Pro 4

DVD authoring moves to HD!
Authoring enhancements
We've discussed primarily the new file format options for import and encoding. But DVD Studio Pro 4's enhancements go beyond these. There are also some important new enhancements that allow you deeper access to the DVD-video specification and provide greater flexibility for DVD authoring.

The first of these is the new VTS Editor. This new feature allows you to assign elements to VTS blocks manually, which, of course, can help you to optimize the performance of your discs. The VTS Editor shares space with the Outline view of your project, and it allows you to drag and drop elements into VTS blocks from the file browser ("Palette"), the Assets tab or the Outline tab. It also allows you to create new video title sets with the click of a button.

The other major authoring enhancement is the new ability to partition GPRMs. This is a fantastic addition to DVD Studio Pro's scripting capabilities, allowing you to break up any or all of the eight available 16-bit GPRMs into smaller GPRMs, effectively giving you more GPRMs to work with. This isn't always practical, as you'll often need the full 16 bits available for a GPRM, but it will come in handy at times when you don't need those full 16 bits but still need additional places to store and retrieve information.

In DVD Studio Pro 4, GPRMs can be divided into one, two, four, eight or 16 partitions, and each partition can be given a custom name.

Then, when you add commands that refer to a GPRM, you can select any of these partitions in the same way you'd select a GPRM in previous versions of DVD Studio Pro.

The restriction here is that you can't use partitions when creating GPRM Mode commands, Jump Indirect commands or Set System Stream commands that are GPRM-based. You can use the partitions in Set GPRM commands and in command comparisons. (All operations and source types in a Set GPRM command can access partitions.)

On the more minor side of authoring enhancements--but nevertheless welcome--is expanded support for menu lop points, including the ability to use loop points in any type of motion menu. You can also jump directly to menu loop points in Jump commands incorporated into scripts.

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