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specification 1.0 (.PAR and .Pnn files). These commonly accompany Usenet binary postings, but the public domain format is sufficiently general to permit other applications as well.
13 lines
809 B
Text
13 lines
809 B
Text
"Parchive" implements a RAID-like system for multi-part archives. Such
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archives are commonly posted to Usenet binary newsgroups. Typically, a
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poster will construct 2 to 5 parity files for a multi-part archive
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consisting of somewhere in the neighborhood of 15 to 50 equal sized parts.
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These parity files contain a Reed-Solomon encoding of the original files.
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He'll then post all of them along with the original parts, so if any number
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of those original parts are lost or corrupted in transit (up to the number
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of parity files), a receiver may reconstruct them from only that number
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of parity files.
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Though quickly growing in popularity for it's intended application, the
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format of the parity files is sufficiently general to be useful for other
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applicatons as well. The format itself is in the public domain.
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