Well, Seph has graced us with Wii releases. Yay! (I suppose) I'm presuming they are in WBFS format (as the size is pretty low) and possibly scrubbed ISOs. Enjoy!
scrubbing takes the garbage data and changed it to all 0's or 1's ,making it less size when compressed with winzip or rar.
See above by Captain_N. As for updates removed, it will probably vary on a file to file basis but so far no updates have been removed nor have any tools like brick blocker been used. It's a clean ISO aside from the scrubbing.
Asking due that i remeber that there were people having issues with scrubbed isos via loading USB, and i asked which kind of scrubbing,g iven a few comunities take scrubbing=removing uopdates, not just the garbage data