If theres no way to do it, I quickly wrote a little thing that calculates the frames pretty easily:
CODE
.$num($ifgreater($right($num($mul($right(%length_ex%,3),75),5),3),500,$add($left($num($mul($right(%length_ex%,3),75),5),2),1),$left($num($mul($right(%length_ex%,3),75),5),2)),2)
but i was hoping there was no need for such a string of coding.
Oh, and if someone knows a way to clean that up a bit, that would be swell, I just threw it together in a few moments and didnt think about any easier way of approaching it.
Thanks,
~E