Batch file editing using MKVToolNix

None that I know of. There are programs like mp3 gain, aac gain and maybe a few others which could be incorporated into a batch but I don't think anything exists that works directly on mkvfiles without re-encoding.

Aw too bad, because its weird - I have some files (even within the same season/folder) which are very noticeably louder or quieter than the others. I've tried the replay gain option with VLC but it didn't really make a difference..

I'm not saying it's impossible, but it requires some work (time) and depending on the format you'll have to live with quality degradation (though it may be impossible not hear).

Hey sneaker, got another quick followup question for ya. So here's my code: Code:

Actually, figured it out -- had to comment out the setlocal line..