an update on my whitelabel 2x media test:
The game I originally tested 1x & 2x booted with no problems. Tried another random game and both 1x & 2x and it failed to boot.
Took the game that booted with no problems on my v5 Messiah PAL to a v7 Magic2 PAL it failed to boot.
Conclusion - I will be sticking with my Traxdata media as I know it works
