Touching up the warc to make sure everything is conformant. Re-reading the spec and I suspect that, in the conversion record section (6.8), the reference to a 'record block' should actually be the 'content block'. It doesn't make sense for the payload of a conversion record to be the record block. It should be the content block. Truthfully, the spec seems to mix these two terms all over the place without defining 'record block'. ('content block' is defined).