- newbie macintosh question
- Posted by wilber on May 2nd, 2008
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hi all. any mac people here? im confused about why when i export from
imovie my files
infomration says "720 x 480 (640 x 480)"
which is it? which ratio should i export for burning as a dvd movie?
and what is the
highest quality format to export to for making a dvd, dv or mov?
- Posted by Grinder on May 2nd, 2008
wilber wrote:
Maximum resolution for an NTSC DVD is 720x480. (You can also use half
or one quarter of that resolution.) In addition, you identify the video
as 4:3 or 16:9 ratio. I would guess (maybe) that you're outputting
DVD-ready video at full resolution, with a 4:3 aspect ratio. The
640x480 just indicates the apparent resolution when played on a pc? Not
sure about that.
Quality for DVDs is largely controlled by the bitrate of the video and
audio encoding--ie, how many bits do you want to dedicate to 1s of
playback? Naturally if you pick half- or quarter-resolution for your
output, you'll have an effect on quality, but I typically use
full-screen and reduce the bitrate to get smaller files.
- Posted by wilber on May 3rd, 2008
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On 2008-05-02 17:49:19 -0400, Grinder <grinder@no.spam.maam.com> said:
great answer that totally makes it clear to me! was so confused. thx
so much for your time and knowledge!
