I am trying to create an Applescript that merely applies a MetaX preset to any new .m4a file that is added to a folder. I have 10.4.11 and Automator 1.0.5, so I can't record macros, but even if I could, I don't see how I would select the most recently added file. To complicate matters, MetaX only has some keyboard commands, such as open file. How do I apply the MetaX preset with Applescript? I'd like to automate the entire process.