I can't find any media my Gamecube likes.
I cut some Verbatin DVD-R 12cm to size and the cube loved them and read them no problem, so I went ahead and bought the same discs in 8cm
http://www.opirata.com/es/mini-dvdr-ver ... -5168.html
Destination Media Type: DVD-R (Disc ID: CMC MAG. AF1)
Funny enough I got a DRE on boot on the 8cm where I got a good read from the 12cm same brand discs.
I have a Xeno GC wich is working fine judging by how it read Verbatim DVD-R 12cm and the status LED shows normal activity.
Here's a video that shows what's going on.
I don't know if I have to further teak the POV but I think it's not necessary since I could read the 12cm discs no problem and even watch the intro videos no prob.
I'm guessing the Verbatim same brand DVDs aren't the same build quality since the discs the cube can't read are printable. Maybe that justifies a difference in build quality.
Anyway. I don't really know how to aproach this.