It is called media cache on Premiere Pro. The cache is stored in the media cache folder or Premiere Pro along with the media cache database files which store links to each media cache file.

Clearing the cache of your computer can improve its performance, and here's how you can do it if you're using a Windows 11 ...

You can clear the Host Cache in Microsoft Edge to remove any obsolete or manipulated addresses from the DNS server. Learn how!

How to Delete Windows Installer Patch Files. After your computer applies a Windows patch, the patch file along with other files related to the installation are cached in the hidden system folder C ...

The test machine we used had 441 MB of cached packages, but this tip cleaned up more than 1 GB on another PC. Hit the link for the rest of the walk-through, including how to disable the caching of ...