Best Compression Methods for 'Specific' Games. Q&A

[kj911]

Hello!

My questions: How to repackaging very old MSTS game with highly compression ratio?

Its probably make likely, two different variants for:

1. Very old PCs (1-2 Core CPUs) users with XP x86 SP2/3 compatibility installers and compressions. (Like FreeArc+SREP+PreComp 0.38 and any more)

2. And newest modern PCs (Core-i3 and higher era) and OS (Vista to Win10) with x86/x64 compatiblity and better maximum compression (FreeArc+SREP+PreComp+RZ+MSC and much more) than older variants.

This very old my repack use classic CMD based installation methods. This game size 7.6GB size reduced to 2.2GB and v2 unfinished version, lower than 2GB file size. (Added more fan made maps.)

Any good idea from best compression?

UPDATE: Testing game compression, use Tiny Compressor v1.4

Used methods: 2 (method 3, this oldschool testing now)

Results:

Source: 19 027 732 495 byte (159 379 files)
Compression time (CPU): ~17700 sec
Compressed size: 4 166 060 315 byte

17.72GB -> 3.88GB

UPDATE2: Method 3 compression failed to 40+ hour long time its my noob errors. Not enough free space from finishing. Pff.

Tested with Method 1:

Compression time (CPU): ~7383 sec
Compressed size: 6 699 140 554 byte (6.24GB)

Any idea how to make setup with stdio (reduced disk i/o) methods from decompression?