Thanks Jeff, this sort of worked!
When I changed the kerning and burned a disc it didn’t work. So I went back and burned an Image, sent it to another machine, burned it there and it worked!
For some reason if you burn the disc directly from Encore (or create a DVD Folder) it doesn’t pick up the changes but if you export an Image file, it does.
Weirdest problem ever.
Thanks
Kev G