begin a project.
Types of scratch disks
While performance can be enhanced by setting each scratch disk type to a different disk,
you can also specify folders on the same disk. The following scratch disk options are
available in the Edit > Preferences > Scratch Disks command:
Captured Video
Folder or disk where Adobe Premiere Pro stores video files that you
capture using the Capture window.
Captured Audio
Folder or disk where Adobe Premiere Pro stores audio files that you
capture using the Capture window.
Video Previews
Files created when you use the Sequence > Render Work Area
command, export to a movie file, or export to a DV device. If the previewed area includes
effects, the effects are rendered at full quality in the preview file.
Audio Previews
Files created when you use the Sequence > Render Work Area
command, use the Clip > Audio Options > Render and Replace command, export to a
movie file, or export to a DV device. If the previewed area includes effects, the effects are
rendered at full quality in the preview file.
Conformed Audio
Imported audio converted to Adobe Premiere Pro specifications for
consistent high-quality playback as you edit. (See “Conforming audio” on page 192.)
Maximizing scratch disk performance
If your computer has only one hard disk, consider leaving all scratch disk options at their
default settings. For maximum performance, follow these guidelines:
•
Set up scratch disks on one or more separate hard disks. In Adobe Premiere Pro, it’s
possible to set up each type of scratch disk to its own disk (for example, one disk for
captured video and another for captured audio).
•
Specify your fastest hard disks for capturing media 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 Adobe 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
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Adobe Premiere Pro Help Working with Projects
Using Help | Contents | Index Back 57
associated with them. If scratch disk files are stored on removable media and the media
is removed from the drive, the scratch disk won’t be available to Adobe Premiere Pro.
•
Although you can divide a single disk into partitions and set up partitions as scratch
disks, this 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.
Setting up scratch disks
You set up scratch disks in the Scratch Disk panel of the Preferences dialog box. Before
changing scratch disk settings, you can verify the amount of free disk space on the
selected volume by looking in the box to the right of the path. If the path is too long to
read, position the pointer over the path name, and the full path appears in a tool tip.
To specify scratch disks:
1
Choose Edit > Preferences > Scratch Disks.
2
For each scratch disk type, specify a disk location for Adobe Premiere Pro to store the
corresponding files (scratch files are stored in a subfolder named after the project).
My Documents
Stores scratch files in the My Documents folder.
Same as Project
Stores scratch files in the same folder where the project is stored.
