I can be wrong, but it seems to me that these two are mixed up:
Amiga Power #12 (1992)(Future Publishing)(GB)(Disk 1 of 2)[Apr 1992].adf
Amiga Power #12 (1992)(Future Publishing)(GB)(Disk 2 of 2)[Apr 1992][Bonus Demo Disk].adf
One of them is actually a bonus disk, but it is the other one. As it is now, Disk 1 above is Project X and Titus The Fox, and Disk 2 is four games, but it is actually the Project X disk that is the bonus one and not the other one. Meaning if crcs32/sha1/md5 for both disks were swapped with each other it would be correct.
You can look at the scans here for reference:
https://amr.abime.net/issue_12_coverdisksText on that page say bonus disk on the Project X disk and if you look at the scan of that disk it also say "BONUS demo DISK" on that one, but not the other one, that one say "PD".
I hope it all makes sense, feel free to ask questions otherwise.