One my neighbours called me asking for help to set up their new printer, so I figured I'll take a quick run over.
Their daughter tried following the instructions, but got stuck at the step saying to insert the disc and follow the instructions. She said the disc would not work and tried to load it several times and figured it must be for the American model.
I do understand that many laptops no longer have a DVD drive, so I thought this must be their problem or they probably denied a Windows UAC prompt. I was also surprised their Canon printer "Quick Guide" did not show how to download the software as an alternative.
Their laptop did have a drive, so I put the disc in and followed the steps that appeared, i.e. just click 'Agree' or 'Next' and so on a few times until it completed. A quick test print and it printed just fine.
So I asked them what happened when they tried the disc and the daughter said - I put it in my DVD player and it would not play, saying she thought it must be a US region disc. I asked what DVD player and she said it was the one in the living room.