[timc]

One, less than elegant, way to deliver an entire file would be to put a two-pop on the front AND on the back of your files.

A one-frame, reference level, 1 kHz tone burst that occurs at EXACTLY two seconds before you file begins... AND ALSO at EXACTLY two seconds after the bottom of your fade will let you know that you have the entire file after the bounce and can be trimmed by your edit partners or mastering guru to the precise length with no problem.

But... calculating the delay amount if you can't automatically compensate for it, should get the entire end of the file without two pops.