GnuCopy is an Open-Source tool to copy and archive all your important data.
It supports all important archive typs like Zip and Tar to guaranty an easy and secure exchange between all types of operating systems.
Additionally, you can create profiles to blacklist or whitelist specific file types or folders to seperate your big data stores for backups.
JOpenZip aims to be the leading Open Source archive utility program for most platforms. This will be achieved through the use of the Java platform, and support is planned for most archive file formats like Zip, GZip, BZ2, Tar and TGZ.