For anyone complaining about the file size of the game, just use the OFFICIAL compressed version (found on the OP)
This is a very reasonable 1.72 Gb.
There is a very slight but almost unnoticable loss of quality for the images. The main reason that the file size is so much smaller is the conversion from png to wepbm file format.
The images are still full resolution, looks absolutely fine on my 27" 1440p monitor.
Also saves you the trouble of RARing 4 parts together

(for people that do not know how to, you obviously never had to do that with 20+ 3.5 inch diskettes and getting a read error on disc #19........those were the days.....

)