I have hunted high and low for a solution to this problem since I originally got the game many many years ago. I have never once managed to get it to work. A solution I saw was to enable a feature in the properties settings on the drive from which you're running FF8, but the feature is just flat out not there on modern machines/ drives/ whatever.
For me, it just doesn't work. I've fiddled with all sorts of settings high and low, tried using different drives, tried the original discs, tried it on 3 different computers. It is for this one reason that I'd rather emulate the playstation version. It's not like there are any super-amazing upgrades from that anyway. Also it has a better quality world map.