Write compatible with DVD-R DL drives only meaning
consider it a different type of DVD, like BLU-RAY
I'm kind of confused because in this day & age who wouldn't have a burner thats compatible with DVD-R DL discs?
With that said, A Wii will also read DVD+R DL without a problem if you set the booktype to DVD-ROM.
If you give me exact model # of you DVD burner I will let you know.