Has anyone else run into issues running Wii games on the Wii U. I can't seem to run Prince of Persia: Rival Swords on the Wii U. I did the download and was successful at running other wii games on the console, but this game, the wii u says it can't read the disk, but it still works on my old wii. I tried cleaning the disk but other than that I am not sure what to do, does anyone have any ideas?
Thanks for any suggestions

Are you located in na or eu?
Does it upscale old wii games or just display them in their normal resolution for you?

Well I only have a SDTV and am using the same cables as from either console to the tv, but my other wii games do seem to work in the wii u.

Is the Wii U and the game from the same region?

I think so, I mean i bought them both at a Gamestop (not sure if it was the same one) here in North America, (USA to be exact. The game even says "Made in USA" Ubisoft San Francisco. I got the Wii U Deluxe version as part of a launch day reserve, not sure how to verify its region, but it is hard to believe that I got the wrong region on launch day as a reserve.
I do want to say that I do appreciate the Scollurio and Tasuki and anyone else who enters the conversation, for your ideas and suggestions, Thank you very much.

I certainly hope we don't run into a Microsoft style BS backwards compatibility....

The backward compatibility works with other games, I have quickly tried: Resident Evil 4, Metroid: Other M, Flingsmash, and Prince of Persia: The Forgotten Sands. the only trouble I am having is with Prince of Persia: Rival Swords, which again works in my original Wii so it is not the disk itself. so am just wondering if anyone else has run into this with a random game.

Well since they seem to be from the same region than I am at a lost. You can try google and see if someone else has had that problem and if that doesn't come up with anything you can try calling Nintendo.

It could be that game uses some weird copy protection and perhaps if the Wii U is emulating a Wii's components it could cause the game to fail? I mean, it's just a guess, but I know Ubisoft, at least up until very recently, was really into the whole DRM thing for PC games and they could have been adding some weird copy protection to Wii games too, just that it wouldn't be publicized since it wouldn't really affect legitimate Wii users. I'd try contacting Nintendo and Ubisoft and hopefully they'd have a solution for you.

I do not see what would make Prince of Persia: Rival Swords any different from other Wii games, so maybe the issue is the disk? Maybe a scratch or something that the Wii U is having difficulty with? I suggest just keep trying or call up Nintendo.

but you can play it in Wii and pass your save to your Wii U´s SD or not?

Thanks everyone for your suggestions, I guess it is time to call, tried a few more games and they all work in the wii u as well. To DarkEdi, I haven't needed a seperate SD card for the Wii U yet, or any SD card I mean, could that be the problem, I havne't moved my saved games and channels to the wii u yet, that might be a whole different topic, am waiting to see if nintendo decides and builds something where we can pick and choose what to move from one system to the other. It seems to stop after I say start a new game and tell it what level to use and i suddenly get a message saying it can't read the disk. Oh well, may just have to play it on the wii also.
Thanks again for all your suggestions people, this community is great.

If a friend wants to sell his Wii can i mix his data with my Wii data in 2 transfers to my Wii U? to have both contents

I have no idea, I haven't even moved my data from my first wii yet. My question was if I use and store some of my channels on a seperate sd card, could i only move some of my stuff?