Hi,
You use zlib for the compression/decompression of the MCA files.
Even though "disk" space as such is not an issue anymore, I still like the small size and good performance of MNF.
Did you ever hear of zstd or Zstandard?
See here: https://github.com/facebook/zstd
It could probably make MNF's reading speeds even faster.
Next to that: it could make your map creation process also much faster (although that might not be the time consuming step)
