Every FILES path hashes straight into the sound.pak TOC (5135/5135, path as stored). The archive is then almost fully accounted for: 5100 jpn + 4382 eng + 35 BGM/JNGL = 9517 of 9519. Only eng and jpn resolve -- deu/fra/ita/esp give zero, which is the archive-side measurement behind 'two voice sets shipped'. 718 Japanese banks have no English counterpart. More importantly this bounds an existing result. The leading-region rule from voice-bank-leading-region.md reproduces its five documented banks EXACTLY under eng\etc\ (16384/2048/14336/45056/59392), so the pipeline is sound -- but it holds for only 1571 of 4382 English banks and for ZERO of 5100 Japanese ones. It is a property of some English banks, not of .slb in general, and the Japanese layout is undecoded. I nearly misread this as a broken extractor, because FILES lists jpn paths and those gave non-multiples of 2048. Reproducing the recorded figures exactly under eng is what distinguished a wrong assumption from a wrong reader.