Perfect for what I needed

I had a bunch (well over 500) sound effects in M4A format that I needed (or wanted really) to put into GarageBand as CAF files. This program grabbed them all and batch converted them and even let me choose where the final output was going to go. I’m sure there’s probably a free or cheaper utility somewhere, but I don’t want to spend a lot of time doing this. Drag and drop simplicity

MacParrot about Audio Converter Pro