While creating your project, you may find it useful to perform builds several times before
you are actually finished with it. These incremental builds can be useful to verify that
certain aspects of the project are functioning properly, such as a set of scripts or a menu’s
To help with this process, DVD Studio Pro includes the ability to reuse unchanged elements
from a previous build. This can greatly speed up the build process when you perform
Once you select a folder to build into, DVD Studio Pro checks to see whether a folder of
the same type it needs to create (VIDEO_TS or HVDVD_TS) is already present. If the folder
already contains a folder of the same type, with a .layout file that has the same name as
the project, a dialog appears for you to specify what should happen.
• Cancel: Closes this dialog and the build process without saving anything.
• Delete: Deletes the current contents of the VIDEO_TS or HVDVD_TS folder and begins
saving the new build information.
• Reuse: Attempts to reuse as much of the current VIDEO_TS or HVDVD_TS folder contents
If you decide to reuse the VIDEO_TS or HVDVD_TS folder, DVD Studio Pro looks at its
contents and, for each VTS block, checks to see if anything has changed from the last
build. If the VTS block has not changed, the message “VOB up to date. Muxing skipped”
appears in the Log tab and the build moves on to the next VTS block.
(Source: Apple DVD Studio Pro 4 user manual)
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