If it says Invalid DVD, then yes to both. Quite likely the problem here is his Wii has one of the new drives with the DVD Video commands removed – manufactured in late 2009 onwards.
I’m using homebrew 1.0.8. How do i findout if its IOS58? I downloaded homebrew from http://bootmii.org/download/ and installed bootmii using boot2. And yes meaning store bought dvd movies. I bought my wii in like 06 but i just got it back from nintendo a few weeks ago cuz it was showing an error message and couldnt read disks at all…