Digital archiving tools

The main distinguishing feature of the hypothetical archiving system I was looking for is the use of internal redundancy to recover from the effects of occasional storage or transmission errors not detected/corrected by the underlying disk drive/filesystem/network etc. In this way, each physical copy of the archive could be independently replicated and transmitted reliably without having to fall back to a completely-redundant and perhaps geographically remote copy in order to deal with these increasingly routine events. I haven't had chance to look at it carefully, but this looks like it is addressing the issue. They are applying RAID-like methods to allow recoverability from isolated errors with an efficient degree of redundancy. http://www.quickpar.org.uk/ http://parchive.sourceforge.net/ --Bill