Thanks to both.
Jim - I've 'shot' wedding in 1080 x 50 so the question is what sequence setting to use in premiere.
A second camera was used with 1080 x 25.
After editing i would hope to use Adobe Dynamic Link to take project to Encore for burning after addition of menus / chapters etc.
I would set it to 1080 25.
Best setting for export is mpeg2-dvd high qualty, you can tweak the settings a bit.
If you are on CS5.5 do not use DL it messes with the fields; export from Premiere.
With CS6 you can use DL and set it to auto.
Thanks for that Ann.
I've done small samples at 720 x 25 720 x 50 1080 x 25 1080 x 50 before using Dynamic Link (which I must admit I've found very convenient and effective previously) to set up in Encore and burn without extras such as menus.
Playing back on a 37" TV we can't see a discernible difference apart from a little shimmer on horizontal lines.
I think I'll press ahead with 720 x 25 with this project which is what I've used before and am confident with but would welcome more advice on this topic.
I wonder if these settings would be even more critical should I need to output to Blue Ray