Sync and Video : Working with Synchronization : Time Stamping

Time Stamping
For more information, see the following topics:
Pro Tools time stamps every clip recorded online with the original SMPTE time at which audio was recorded. You can recall this original SMPTE time for a clip by clicking the Original Time Stamp button in the Spot dialog.
You can also spot a clip to a separate user-defined SMPTE time stamp, defined using the Time Stamp command in the Clip List menu. Once the clip is time stamped using this command, you can click the User Time Stamp button to re-spot a clip to its user-defined SMPTE location.