Caching In/Out Ranges
Caching ranges uses In and Out points set on the timeline to determine what you cache to disk. All tracks are read from the highest track downwards, so what you see in the Viewer between the In and Out markers is what you cache to disk. See Using In and Out Markers for more information.
Tip: You can pause caching at any time by navigating to Cache > Disk Cache > Pause in the menu bar.
After setting In and Out points, you can cache that range from the timeline itself or from the Cache menu:
• In the Sequence tab, click the icon, and then select Cache In/Out Range.
• Select Cache > Disk Cache > Cache In/Out Range from the menu bar.
See Clearing Cached Frames for information on how to clear frames from the disk cache.