Some games want a Disk in the Drive...live with that. Just put a damm Disk in it...you can even insert a CD, a Movie-DVD, or another Game. Also doesn't matter if something is on the CD/DVD...it just wants a Disk in the Drive, nothing more...damm...I think you have still a drive in the Wii, right? And it won't spin the Disk, so the Laser shouldn't be used...there's nothing that is bad if you insert a disk...
If you don't have a Drive, there's no way now...Search next time, please...