capture & edit as anamorphic.
export your final sequence as a QuickTime movie, same settings.
before you bring it into iDVD you need to run it though a tiny 3rd party app called "The Anamorphiciser"
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homepage.mac.com]
this is because iDVD can only see files as anamorphic that have come from iDVD.
if you used your FCP export in iDVD, it would NOT flag it as 16/9, and it would play squeezed.
running it through The Anamorphiciser will add a flag to the file, and then iDVD will encode it as 16/9 and it will play letter-boxed on a standard TV, and full screen on a wide TV
another way is to LETTERBOX in FCP.
you make a new 4/3 sequence,
drag your final 16/9 sequence into it (you;ve read the posts)
this creates a 4/3 letter-boxed image.
it'll play that way on a standard TV.
good thing about the other way,m is if people view on a widescreen TV, they'll see it full screen.
(plus less work for you )
cheers,
nick