Move video clips in one place I just finished editing a video, and I realized that some video clip files used are still in the client's USB flash drive :( Is there a way (like a python script) to tell Blender "gather all the material used in this .blend file in this directory"?

How can I give him his drive back, without risking coming back to this .blend file later to find files missing?
Close Blender. Copy the files to your local hard drive. Unplug the USB drive. Open your file in Blender. Hit File -> External Data -> Find missing files. Select folder containing local files. Hit Find missing files.