http://packages.gentoo.org/packages/?category=dev-perl;name=MP3-Info homepage adress outdated from the last ebuild: SRC_URI="mirror://cpan/authors/id/D/DA/DANIEL/${P}.tar.gz" another possibility is http://search.cpan.org/~cnandor/MP3-Info-1.13/ (it's the 1.13 page but it has a link to the 1.20 page and the 1.20 pagge hasn't a link to the 1.13 page but instead a box with goto that the 1.13 page has also..the 1.12 page has only a link to 1.20...)
The problem is that this package has 3 ebuilds, each with a different HOMEPAGE. packages.g.o only stores one home page per package with the (usually correct) assumption that a software component has the same home page regardless of what version it is. My recommendation is that the ebuild maintainer use the same HOMEPAGE for all ebuilds, e.g. http://search.cpan.org/~daniel/
This seems to be a "special case" where it doesn' seem worth the resources to implement the logic needed to handle the special case.