THX.
My setup:
Kickstart 47.115 (3.2.x)
Workbench 47.5 (3.2.3)
Blizzard 030/50 MHz
32 MB Fast RAM
CF card HDD setup
Important: the issue reproduces consistently on WB 3.2.x. You reported it works on WB 3.0, so it seems to be a WB version / OS compatibility issue rather than file or install corruption.
I can reproduce the “DISC ERROR” both on HDD install and ADF mounted version under WB 3.2.x.
Excellent graphics piece of art, I like it.