Brian's code is good with one major exception:

If the created file is moved or trashed, the program will crash
because the CFURLRef will no longer point to a file and thus will be invalid.

I would suggest testing the global CFURLRef with fn FD_ObjectExistsCFURL
that can be found in Util_FileDirectory.incl to be sure it still exists.

The same flaw was in Ted's original code, the global FSRef could point
to a file that no longer exists, and thus cause a crash.

Ken