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reducing the size of movie to burn via iDVD

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This has happened to me a number of times: I record a TV show/movie. I edit out the commercials,etc with iMovie and then export to iDVD for burning. Keeping the movie at it's highest quality, it comes in at 4.3 Gig and although my blank DVDs says it holds 4.7 Gig, iDVD only says there are 4.2 Gig for recording. I know I can encode at a lower setting so it fits, but I really would like to keep quality as high as possible. Is there any app out there that would let me shave a few hundred Mb so that I could squeeze it on to a single sided DVD?
 
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How long is your movie? A standard dvd will take about 1h 30m of video. It sounds like you are exporting from iMovie and then using that movie file to make a dvd with iDVD. Why not just Share straight to iDVD from iMovie? iDVD re-encodes the video anyway, so even if you have a 4.3Gb, 1 hour movie file, it will fit on a standard dvd.

I really would like to keep quality as high as possible.
Don't be too worried about that. Standard DVD resolution is only the equivalent of 480p/i so it's not going to be anywhere near the quality of your original.
DVD-Video - Wikipedia, the free encyclopedia
 
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MightyGem,
Thanks for the advice. I did share directly from iMovie to iDVD. The unedited length was 2 hr, with the edited some where around 1:40. Encoding at High Quality instead of Best Quality was what I had to do
 
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Encoding at High Quality instead of Best Quality was what I had to do
That would have been my next suggestion for a longer video.
 

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