thanks for the quick replies guys.
ok, i’ve done some serious checking into the original files and tried all different methods, firstly UDF2.60 did NOT work on my NTSC PS3, it didn’t recognise the disc but the UDF2.50 was ok, but wrong signal.
ok, the reason it won’t work is that the framerate is 25fps as it looks like it came from a PAL tv source and whoever encoded to mkv made it 25fps.
so it won’t work from a disc but the m2ts file will work perfectly.
thanks for your help though, i do appreciate you taking the time
p.s. does anyone know what chef was trying to say?