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28.
MORE RESOURCES ON
DVDS
MAKING BUTTONS FOR DVDSTYLER
If you want to create more complicated buttons for DVDStyler there is
a great blog post about it here.
1
OER DELIVERY AND DVDS AS PART OF
THE LAST MILE DISTRIBUTION
The discussion of case study is supported by research on the delivery
of Open Educational Resources, many of which are made available in
video format.
Bridging the Bandwidth Gap: Open Educational Resources and the
Digital Divide
2
Björn Haßler and Alan McNeil Jackson
The paper presents an overview of Digital Divide issues associated
with the global disparity in availability and cost of bandwidth. We give
examples and discuss the relevance of this to global use of Open
Educational Resources. Strategies for mitigating low-bandwidth
challenges are discussed
TRANSCODING YOU VIDEO FOR A DVD
At this step, we believe that you finished your video. You certainly
want to provide your work on a material support like DVD. In this part,
you will know how to encode in MPEG2 the format for the dvd
authoring. At the end of this part, if you want to edit a DVD in the
wrapper Vob, we invite you to see the chapter : Hands On - DVD.
The DVD use the compresion MPEG 2. The size or the resolution of
the picture is 720x576 in a frame rate of 25 pictures by seconde for
europa and for america 720x480 in a frame rate of 29.97 frames per
second. The aspect can be in 4/3 or 16/9. The total bitrate is at
maximum 9800 kb/s. Generally, the video bitrate is 8000 kb/s and the
audio 1536 kb/s. The rate of compression depends of the duration of
your video. You have to adapt the quality of your compression with
the size of the memory of your optical support in this case the DVD.
Stay with your Terminal or Konsole, we'll use FFMPEG for this in the
first case. Why ? Because FFMPEG has a preset for that. The method is
very simple. Call FFMPEG, choose your video to encode, call the preset
to encode for a DVD and name your new file media in MPEG2 format
that will be generated.
ffmpeg -i your_video.mp4 -target pal-dvd your_dvd.mp2
And validate by Enter on your keyboard. The processus of encodage
is starting. It will take a certain time.
Some basics commands can refine your project, change the letter x by
your own value ;
-b xxxk to define the bitrate of your video codec
-ab xxxk to define the bitrate of you audio codec
-aspect x:x to define 16/9 or 4/3
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