Currently with HDLink, if you change the frame rate from the drop downlist, erm lets say 29.97-25 (just example), the final clip is longer or shorter, depending on what you chose to change to.
However it's far more practical to have the change keep the same length, as you can then apply the original audio to the converted footage.

Is this something that can be implemented in the future or is this still Twixtor's job ?