My best guess is that it's the video codec that's making the difference
in playback quality. DVDs are encoded with MPEG-2, which requires less
processor resources to decode and play back that the newer file formats
commonly used in downloadable video. Your G4's processor is simply too
weak to keep up with the load of decoding said newer formats.
Chance
On 11/15/10 8:21 PM, Jonas Lopez wrote:
DVD, Webcam, Pix, and Images: why are they soooo different
I continue to delve into the various differences on my several Mac
presentations.
When viewing a DVD, even in FULL SCREEN presentation, the picture is
perfect, not a pause or flicker to be found. When I view a "canned
video" downloaded from the internet and presented in Quicktime, Real,
or Windows Media, we have pauses and disruptions even at small sizes.
Allowing the video to fully download to the computer then showing it
makes no major difference, but does cure some minor presentation issues.
So, what is the difference between a video downloaded and now resident
on the computer and a DVD being read from a disk?
Why aren't these presentations the same or nearly so?
I do understand that if the processor is spending time to service the
download at the same time it is required to spend time slinging it to
the screen, their will be a slow down, but once the video is
downloaded, why aren't the DVD and Video the same quality?
Hope you can explain this apparent difference.
JML G4, 10.4.11, 450MHz, 512Mb, stock DVD player, DSL line.
"I'm a designated FREE SPIRIT HITCHHIKING on the Information Super
Highway"
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