I would like to rename media files for each event on the timeline. 
Since there is no "Rename" function in jscript, I assume I need to use the System.IO.File.Move (SourceFileName, DestFileName) method.
When I try this, I get "Error: The process cannot access the file because it is being used by another process."
Do I have to remove the file from the timeline before it can be renamed? Can anyone help me with this?