OK, if anyone ever wanted to know, it IS possible to use your Wii on a DVD player. Do you know how I know? Becouse I'm doing it right now to write this blog. It is quite a mess becouse the DVD player has different A/V ports than what the Wii has. So I took our VCR and got the cables that were coming from the Wii and put them in the INPUT ports on the VCR. Then I got the cables from the DVD player and put them in the OUTPUT ports of the VCR. After changing the channels on the VCR for awhile the Wii settings popped up!
Hoped this helped!
PS: It isn't very nice with the small screen compared to my cousins who has a TV, but you still can see what you're doing! One more thing, the DVD player that I use for the Wii is 8 inches and I'm fine with that!