Pro Tools 101_ An Introduction to Pro Tools 11 ( PDFDrive )

Rendered Files
Whenever you use rendered Elastic Audio processing, Pro Tools creates
temporary files for the audio on the affected tracks. These temporary files are
kept in an auto-created Rendered Files folder in the session folder. If you
commit Rendered Elastic Audio processing to a track, a new file is written to
disk in the Audio Files folder, and the temporary rendered file is deleted
from the Rendered Files folder.
If you do not use Rendered Elastic Audio processing in your session, no
Rendered Files folder will be created in the session folder.
Session File Backups
If you enable the Auto Backup function in Pro Tools, the Session File
Backups folder will be created automatically, and auto-saved session backup
files will be stored in this location.
Tip: Auto backups are enabled in Pro Tools by default. You can specify
the number of backup files to maintain and the backup frequency in
the Operation tab of the Preferences dialog box (SETUP >
PREFERENCES).
Video Files
The Video Files folder is used when you copy a video from source media
during certain operations in Pro Tools. However, when you import a video
file (such as a QuickTime movie or an Avid video file), the session
references the file in its stored location and does not copy it into your current
Pro Tools session folder.
Tip: For maximum session portability, you might want to create a Video
Files folder, if it does not already exist, and copy existing movies into
it prior to importing them into your session.
Starting Pro Tools
Because Pro Tools systems are typically composed of both hardware and
software, preparing your system for use might involve more than simply
turning on your computer and launching the Pro Tools application. The larger
the system, the more important it becomes to follow a specific startup
sequence.