Adobe Premiere Pro CS6 User Manual
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earlier project after editing another project with different scratch disk locations, Premiere Pro will seek out the files belonging to the earlier project
at the scratch disk locations you chose for that project.
If you delete preview files or conformed audio files for a project, Premiere Pro automatically recreates them when you reopen the project.
By default, scratch disk files are stored where you save the project. The scratch disk space required increases as sequences become longer or
more complex. For best performance, dedicate a hard disk or disk strictly for your media assets. Choose a disk for the assets other than the disk
where you keep your project file, operating system files, or the files for applications. That way your media disks can access and play media files as
fast as possible, without having to access other files. Use the Project > Project Settings > Scratch Disks command to specify which disks Premiere
Pro uses for media files. Choose scratch disks when you set up a new project.
In terms of performance, it’s best to dedicate a different disk to each asset type, but you can also specify folders on the same disk. You can
specify unique scratch disk locations for each of the following types of files:
Captured Video Video files that you create using File > Capture.
If you transfer video files to a scratch disk folder before creating the project for them, specify the folder containing the video files for Captured
Video.
Captured Audio Audio files that you create using File > Capture, or by recording through the Audio Mixer as when recording a voice-over.
Video Previews Files created when you use the Sequence > Render Entire Work Area command, or Sequence > Render In to Out (in Premiere
Pro CS6), export to a movie file, or export to a device. If the previewed area includes effects, the effects are rendered at full quality in the preview
file.
Audio Previews Audio preview files are created by all of the following commands:
Sequence > Render Entire Work Area
Sequence > Render In to Out (Premiere Pro CS6)
The Clip > Audio Options > Render And Replace command
Use export to a movie file
Export to a DV device
If the previewed area includes effects, they are rendered at full quality in the preview file.
Specify scratch disks
You set up scratch disks in the Scratch Disk pane of the Preferences dialog box. Before changing scratch disk settings, you can verify the amount
of free disk space on the selected volume. by The amount appears in the box to the right of the path. If the path is too long to read, position the
pointer over the path name. The full path appears in a tool tip.
1. Choose Project > Project Settings > Scratch Disks.
2. Identify a location for each type of file named in the dialog box. Premiere Pro creates a subfolder named for each file type (for instance,
Captured Video) and stores the folder’s associated files in it. The menu lists three default locations:
My Documents (Windows) or Documents (Mac OS) Stores scratch files in the My Documents folder (Windows) or Documents folder (Mac
OS).
Same As Project Stores scratch files in the same folder where the project file is stored.
Custom Allows you to specify a location of your choosing. Choose Custom, then click Browse and browse to any available folder.
Optimizing scratch disk performance
For optimum performance, follow these guidelines:
If your computer has only one hard disk, consider leaving all scratch disk options at their default settings.
Set up scratch disks on one or more separate hard disks. In Premiere Pro, you can set up a separate scratch disk for each type of media.
For example, you can set up one disk for captured video and another for captured audio.
On Windows, specify only partitions formatted for the NTFS file format as scratch disks. On Mac OS, use partitions formatted for Mac OS
Extended. FAT32 partitions are not recommended for video. They do not support large file sizes.
Note: Third-party tools are available that allow NTFS drives to work with Mac OS. See
and
.
On Mac OS, disable journaling for best performance.
Specify your fastest hard disks for capturing footage and storing scratch files. You can use a slower disk for audio preview files and the
project file.
Specify only disks attached to your computer. A hard disk located on a network is usually too slow. Avoid using removable media because
Premiere Pro always requires access to scratch disk files. Scratch disk files are preserved for each project, even when you close the project.
They are reused when you reopen the project associated with them. If scratch disk files are stored on removable media and the media are
removed from the drive, the scratch disk is not available to Premiere Pro.
You can divide a single disk into partitions and set up partitions as scratch disks. However, partioning doesn’t improve performance because
the single drive mechanism becomes a bottleneck. For best results, set up scratch disk volumes that are physically separate drives.
You can capture audio and video to separate drives, if supported by the format codec. (The native DV and HDV capture in Premiere Pro
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