We don't know exactly when the cut-off is for DVD compatibility, but we usually say if it's 2008 or before, it has a good chance it will work.
2009 or later, it won't.
The Black RVL-001 Wii didn't get released in Europe until Nov 2009. So the system is very likely "too new". You will have to find a White RVL-001, and hope it's a system made 2008 or earlier, not in 2009.