Hi Guys....new here but been lurking for a long while....
For those who use windows and are having problems with the Backup-Creator:
1) Make a folder on your C drive (called Wiiso or whatever you like, but keep it short and simple, makes it easier)
2) place the Backup-Creator (or exctractpartition) with the common-key/root key in the folder you just created
3) do the same for your ISO
4) click on start->run (or press the windows key and the R key at the same time) and type CMD
5) in the DOS window type C: then hit enter
6) type cd and hit enter
7) type "backup-creator xxx.iso" and hit enter
This should easily take care of the problems some people are experiencing with the software. On a side note if you use the GUI driven patcher it will erase the common-key from the folder (or at least it did it for me) and when you go pack using the command prompt version it won't work.
I used the system above for 30 some "backups" and never failed once.
In the next couple days I'll try to cross reference what I've burned with the wikipedia and add whatever is missing. My config is NTSCU Wii with HD Cables, I've only used DVD-R (printable Verbatim or Sony) and never had a problem as far as disk not being recognized by the Wii. I use imgburn at varying speed (from 2.4 to 16x) and the results don't change. My burner is a Pioneer.
Suggestion from previous experience with consoles try avoiding DVD+R (more PC oriented) or DVD-RW and stick to -R's they are ompatible with most of the DVD's out there may they be just players, consoles or car navigation systems.
Also tried Taiyo Yuden and Ridata and they both work fine.
For those looking for decent price try
http://www.supermediastore.com/dvdr-inkprint.html or the good old NewEgg (for the fellow americans of the site).
Later