On Wed, 13 Jun 2007 17:50:01 -0700, Metalhead Rod <Metalhead
Rod[ at ]discussions.microsoft.com> wrote:
[Quoted Text] >I am having issues trying to burn a movie I created in Windows Movie Maker.
>Ive searched high and low and cant find a solution. Creating a DVD is
>incredibly easy, but once I burn it - it was burning for 6 hours and only at
>61%!!! Any ideas? I have a good quality computer. My burner is very fast - I
>think the problem is its taking so long converting the file into a file that
>will go onto the DVD. Any help is appreciated. Thanks
You may have answered your own question. Several things need to happen
when you burn a DVD.
1. You need to have COMPLIANT file types. If you don't, then whatever
application you're using needs do a process called transcoding
which is just a fancy name for converting the file type. DVD's are
made from MPEG-2 files. If you start with anything else then they
need to be transcoded as a first step. This usually happens
transparently, but can take a long time, more so if you're also
changing either the frame size (DVDs in North America are 720x480)
and also if you are changing the frame rate which again in NA is
set to be 29.997 frames a second. This process is sometimes
referred to as rendering. At this point the files are DVD
compliant, meaning only now can now be prepared to be placed on
a DVD.
2. Next the files get prepared, so they are readable by DVD players.
Often the audio stream needs to be recompressed first with the
MPEG-2 sound track recompressed to AC-3 which is one of the default
types used.
3. Only now will the actual "burning" ie writing the data to the DVD
begins. This is the fastest and final part. With a fast DVD burner
the actual "burning" phase assuming you are running between 8-16X
and are burning a full 4.7 DVD, should take on average between 6
and 15 minutes. All the rest of the time is spend transcoding and
preparing the files. By far the first step takes the longest with
hours not uncommon depending on what you used to create the source
files you're using in your project.
As an example I use Vegas, a professional grade video editor that can
render to MPEG-2. I use all kinds of source files, AVI, DivX, WMV, you
name it. It takes Vegas anywhere from 2 to 1 to 8 to 1 ratio to
complete the render (step #1) depending on what filters are applied
and if it needs to change frame size, frame rate, etc.. So rendering
a source file that's 10 minutes long can take between 20 minutes up to
about a hour and a half. Since you can get about a hour and twenty
minutes on a single sided DVD, the rendering process can take awhile.
So the short answer is nothing may be wrong at all. Give the process
time to complete.
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