Optimize a BAT script, suggestions?
 

I have this BAT script processing a load of MP3s I created. It applies replaygain tags and then creates file hashes of the tagged MP3s. My code is posted at this site here [there are issues with the TFP server and having FOR codes while posting my BAT script]

Code or see attached script

There is that last line of code that is just far too long and a pain to edit. Also for purely academic purposes I would like to know how to make it prettier.

Suggestions? I was looking for a way to pass variables from one BAT script to another, but all tips/methods are welcome.

OK this is getting on my nerves. I have found half a dozen sites that explain the problem but none post a damned example!