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| | Parchive "parity Chunks" For A More Robust Network - Official eMule-Board |
 | | AFAIK, RS codes are able to correct N/2 errors using a parity chunk of dimension N. That means, to be able to reconstruct a complete missing chunk you need 2 different parity chunks of the size of the missing one. |
 | | If no chunks were actually missing it could be used as something of a "wild card" chunk where you wouldn't have to actually transfer the final chunk of the file in order to reconstruct the whole thing. |
 | | Now, you already have n-1 chunks, but there's an n+1th chunk, so instead of dropping the extra source, you ask for the extra chunk(order is of no consequence, after all, you can't say "I've already started n, must keep the last one empty"). |
| forum.emule-project.net /index.php?showtopic=94799 (3233 words) |
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