c7cf1e5c95
Probed the bytes before the data offset at all four values. Not a length field (no word in the first 64 bytes matches the offset, the RIFF position or the entry size, either endianness). Not a seek table or any ascending index (~50% of consecutive BE word pairs are non-decreasing, i.e. random; all words distinct, none zero). Not zero padding in general (5876 of 7358 have content). Not audio being discarded (offset 0 wins 6 of 7358). High-entropy content whose size is constant per language and subdirectory, with no self-describing length -- which points at a loader that knows the size a priori. Recorded the next step as static PE work rather than another archive pass; the byte-level evidence here is about exhausted.