OT: file copy protection from USB device

[Angie]

I'm cross posting this in both the SAC and SAWStudio forums as I know there are some programming wizards in both.

I'm looking for a way to allow copying of audio files from a USB device only with a password. Viewing and listening directly from the device would be transparent. But upon trying to copy the files, a pop up would appear asking for a password. I would need this to work for both windows and mac. Could Autohotkey be used for this? Any direction you could point me?

Thanks for any plausible ideas.

[kylesoundman]

Basically a read only state and a password required just to copy or move them? Might have to just create an encrypted zip file?