Transferring metadata

Can anyone recommend a program that lets me save ALL metadata from one file set and load it back into the same file set at a later time, without having to keep the program open in the meanwhile as with Mp3tag?

Mp3tag Export and Textfile-Tag need not apply, since this must work on ALL metadata.

Thanks.

I saw this some years ago, no guarantee, try it out on your own risk:
http://dalepreston.com/Blog/2007/01/removing-id3-tags.html

DD.20101229.1833.CET

Thanks D. That covers only ID3 metadata, but is certainly worth knowing about.