gentoo-overlay/app-cdr/sync2cd/metadata.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
<pkgmetadata>
<!-- maintainer-needed -->
<longdescription>
sync2cd is an incremental archiving tool. It allows backing up complete filesystem hierarchies to multiple backup 
media (e.g. CD-R). Files are archived incrementally, i.e. only new or changed files are stored during an archive 
operation.

All entity types are supported: directories, files, symlinks, named pipes, sockets, block and character devices.
(copyied off ref url)
</longdescription>
</pkgmetadata>