Amiga Computing Issue 66 (November 1993)
http://amr.abime.net/issue_505_coverdisks
Bit less straightforward, this one:
The two coverdisk files and filenames are correct, so don't touch them, but the jpeg filenames and the content tables are the wrong way round - ie the coverdisk picture and table contents of AMOS 3D should be Disk 2, and vice versa.
I discovered this when inserting and loading AMOS and the intro text specifically said something like 'Welcome to Disk 2, Amos 3D'.