A fair amount of these are originals from the mid-90s when I picked them up at the local newsagent. I’ll be rescanning and optimising them onto my Sonic the Hedgehog website in the near future. These caps were the Australian variant. Josh and I collected these as I fondly remember watching Sonic SatAM on Cheez TV.
The original scans were done on a gigantic SCSI-based scanner attached to an old PC from the same era. I originally uploaded them around 1994/1995, and incredibly the Wayback Machine later captured copies of those old images. Those surviving archive captures are now the source of the images on my Sonic website. The old PC we used might have even had a Creative Labs CD-200 2x CD-ROM. Such amazing times to grow up in!