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Also known as: PAR2 blocksize, slice size
The fixed slice length PAR2 divides source files into, chosen when the recovery set is created and recorded in the .par2 index. Small blocks allow precise repair, since a single damaged article costs less parity, but multiply the block count and slow verification on large releases. Posters commonly aim for a few thousand blocks total, balancing repair granularity against processing time.
Browse all terms in Binaries, Encoding & Repair, or see the full Usenet glossary.