Fix wrong block size on decompression of large CSOs
Fix wrong block size on decompression of large CSOs

maxcso would resize its buffer to be the large ISO size, instead of keeping it the size declared in the CSO

unknownbrackets/maxcso,unknownbrackets/maxcso,unknownbrackets/maxcso,unknownbrackets/maxcso,unknownbrackets/maxcso,unknownbrackets/maxcso,unknownbrackets/maxcso