Why would there be? I haven't used much whdload games, but those couple I've tried have worked. Of course you need AGA output for those, but I guess that's not the question

BTW. TV-card can be used like "poor man's" scandoubler. You can put cable between Amiga's composite out and TV-card's video in and then watch PAL-modes through TV-software. It even works with non-multitasking stuff like whdload games.