I'd like to second that request.  I'm new to SUPER--it was just recommended to me--and one primary use that I have for video is converting a number of files in various formats with different volume levels into the same format. 

How do we control the output so the volume is the same for each output file in a batch?

Even better, can we set a dynamic range and allow all the output files to have dynamic variation constrained within a certain range?  This way, naturally quieter sounds still sound quieter and louder sounds still sound louder.

Thanks!