I believe how he says it, it's correct in English.
But he should pronounce it the French way, cause it's a French name otherwise the non-French won't know how to pronounce correctly.
I have a French name too, I hate the Dutch way of pronouncing it, so I keep correcting everyone, even if it's useless with some people.
I also think Seb's name should be pronounced the original way.
@ Kezzi: You can't even pronounce your own name with the correct french accent
I have a german/dutch name, so no trouble there. But then again, in English or French-speaking countries they can't seem to remember it because they don't know it