We would love to have the ability to add XMP data to any file using Photo Mechanic. Any chance you could look into this? In today's workflow our photographers have to deal with more than just pictures. Their also working with audio, video and office products. If we could simply embed XMP meta data into every file it would certainly help in tracking files within our database (which can read any XMP meta-data embedded in any file).
Its a world bent on finding the file more than just having it.