The "Volume" Avid is looking for when you tell it to Link to AMA Volume is a complete card backup from a tapeless camera. A camera "volume," or "tape." It means "link to this complete tapeless backup." It won't work with a hard drive volume. If you have separate files, you can AMA link to them as LINK TO FILES...and select multiple files. If they are scattered, you'll have to do location by location.