Unfortunately I don't have a BD burner so far, but i'd give a try to different authoring and playing software as well as to burning software
1) Changing resolution to standard profiles, i.e 1920x1080
2) Try different authoring software and see if the results can be played at both software players (windvd & powerdvd)
3) Nero Burning Rom allowed you to change DVD's bookmark data from DVD+/-R to DVD-ROM, I wonder if it gives the same feature to Blu-ray, say it would allow you to change BD's bookmark from BD-R to BD-ROM, so the standalone players will consider your BD-R as a standard BD-ROM
ps: all soft is trial, so try them out and don't forget to get BD-RE for these tests
