Just out of interest, i have got it working with Verbatim DVD-DL 4x, i think they were singapore-made discs.
I only had ridata DVD+DL at home from about a year ago when i needed to burn a few DVD9 movies, so when i tried it on those, you could hear the wii struggling to read the disc then kept getting the White Error Screen with Green writing, which my Japanese friend translated to say "Unable to read disc".
Anyway, its all running fine now, just wondered, some people have mentioned its in english and some have mentioned about turning deflicker off, etc, but how do you do this if you cant read japanese (i sent t screen grab of the warning to my friend, hes not around when i play to translate the menus!).
Am i missing something to turn the game into english?
Thanks
heres something useful for us non-japanese speaking people, a menu screens translation from IGN
http://faqs.ign.com/articles/849/849163p1.html