Mass editing WAV files?

[the shirt ninja]

Thank you for your reply, but I found that the easiest way was using Audacity Macros. Create a Macro that has the steps "Mix from stereo to mono" followed by "export file" and Audacity will automatically do it for every file you select. It also won't overwrite them but create a new folder in the same directory as the original files. The new files will have the original file's names, as well. Worked like a charm.