Hi all,

TLDR:  Repacking the T2310 spin with libdeflate recovers 45MB in the
T2310LIVE.ISO file and 27MB in the T2310BNS.ISO file.

The script that does this as a proof of concept is:

* https://github.com/dajhorn/fdrepack

And a spreadsheet with per-package results is:

* https://docs.google.com/spreadsheets/d/13vaF9-ic_kWFXCfprZX6b-TjntFA3UPA/edit

For fun, the comparative savings with various archive formats having
decompressors implemented for DOS are...

Live Image:

  03.27%  REARJ 3.10
  07.24%  libdeflate 1.19
  07.56%  zopfli with 255 rounds
  12.17%  Info-ZIP BZIP2
  20.57%  RAR 2.90
  35.51%  7-Zip 16.02

Bonus Image:

  03.22%  REARJ 3.10
  07.33%  libdeflate 1.19
  07.61%  zopfli with 255 rounds
  13.26%  Info-ZIP BZIP2
  21.95%  RAR 2.90
  36.32%  7-Zip 16.02

The libdeflate product is remarkably good, especially compared to zopfli.

Best,

-- 
Darik Horn <dajh...@gmail.com>


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