Hmmm, it appears that having this
Code:
<dc:rights>Copyright © 2006 by Christine Amsden. All rights reserved.</dc:rights>
in the epub's OPF file leads to this
Code:
<dc:Rights>Copyright © 2006 by Christine Amsden. All rights reserved.</dc:Rights>
in the mobi's OPF file after conversion by kindlegen, and unpacking with mobiunpack.py.
Is that what you were after?