Thanks gents! I thought as much. Is it a case of old/cheap kit just not as good as it should be, which causes a drag factor on the rest of us? Just like like a couple of years ago you had to produce websites in 800px wide to ensure the flat earthers could view your site.

So in producing a dvd is better to go for a lower 6meg bit rate as Marc says or say sod it and go for the higher rate? I guees the logical answer is to test both on as many players as possible. In fact I'll do that and post the results, if the mods are happy.