So what I don't understand is that all my pc-engine roms are zipped, so why would skyscraper have a problem with just two of my pc-engine roms and not the other ones? Since they were all zipped by romcenter on my computer, surely none of the zip file hashes match.
Maybe those 2 zip files and their hashes are not added to ScreenScraper's database.
@anmag70 I'm not the one that started the topic, but can you link one the videos you mentioned ? Otherwise your guidance reads like 'use Google to find the answer'.