System information
n  Select  the Create trimmed  copies of source media radio button and enter a value in the 
Extra head and tail  box to reduce the number and size of media files necessary to represent  
your project.
Your project will be scanned to determine how much of each media file  is being used and 
those regions will be rendered to new media files. The  amount of time specified in the Extra   
head and tail setting will be added before and after the media  file to allow subsequent edits. 
All events are then updated to point to  the new files. Finally, inactive takes are removed from 
the project, and   the project is saved.
The newly rendered files will match the source files' properties as closely as possible:
n  Audio/video events are saved in a new AVI file. You can trim DV AVI, uncompressed 
AVI, and Sony YUV AVI files. Because of the lossy nature of other video formats, those 
video files will not be trimmed, but will simply be copied to the project folder.
n  Audio-only events will be rendered to the Wave format if under 2 GB (or Wave64 if 
over 2 GB), and DV files will be rendered as DV AVI files.
Project References in Rendered Files
When your Vegas Pro project uses  media that was rendered with an embedded project  path reference, you 
can easily open the source project in the associated  application if you need to edit the media later. ACID 
5.0, Sound Forge  8.0, and Vegas Pro 6.0 and later   allow you to save the project path reference when you 
render files.
For example, imagine that you have an audio file on the Vegas Pro  timeline that was rendered from an 
ACID project. In previewing your Vegas Pro project, you discover that you'd  accidentally rendered your 
ACID project with a critical track muted. You  could simply right-click the event on the Vegas Pro  timeline 
and choose Edit  Source Project from the shortcut menu to reopen your ACID project,  unmute the track, 
and then rerender it.
The project information in the rendered file is a reference to  a project file only. If you modify the 
project file after rendering, the  project data will no longer match the rendered file. To edit a project  
using a path reference, the project file and all media must be available  on your computer.
Saving the project path in the rendered file
1.  Save  your Vegas Pro project. The project  must be saved before you can embed the project reference 
in the rendered  file.
2.  Perform the procedure described  in the Rendering Files topic to choose the file  type and location for 
rendering your files, and select the Save  project as path reference in rendered media check box.
For more information, see "Rendering Projects (Render As)" on page 515.
The check box will be unavailable if you haven't       saved your project or if you're rendering using 
a third-party file-format      plug-in.
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