Audio & Video Software forum

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Jerky playback of iTunes TV show on Quicktime player

by Rob10 / May 16, 2008 12:01 AM PDT

I've purchased two episodes of LOST from iTunes, but just can't watch them because the video jerks along so much. I have an older computer (933 MHz P III, 512MB RAM, ATI Radeon 7200 32MB), so I'm not expecting perfection, but I used to be able to watch videos with no problems, and I'm able to watch shows on DVD through my DVD drive. I tried shutting down the obvious resource-hungry apps., slowing down my Hardware Acceleration in Display, but no help. Yeah I know, get a new computer! But outside of that, any ideas appreciated.
Thanks!

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Sorry but
by R. Proffitt Forum moderator / May 16, 2008 1:59 AM PDT

Recent changes to iTunes has resulted in the bar being raised a little on the slowest machines that ran without issue. You should check your IDE DMA settings just to be sure.
Bob

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re
by Rob10 / May 16, 2008 11:26 PM PDT
In reply to: Sorry but

Thanks Bob,
I've been talking to friends about how websites have so much more intensive content now that my computer does seem a lot slower than it did 5 years ago! I quit trying to watch LOST from ABC's website because just logging onto their site would slow things to a crawl. That being said, things I watch via my optical drives still work fine, and I assumed that since the LOST episode I wanted to watch was downloaded instead of streamed, I it should work.
I checked my DMA settings and they were enabled. I can't remember IDE settings. How do they affect watching a video, and how would I change them without screwing things up?

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Here's the link on that.
by R. Proffitt Forum moderator / May 17, 2008 12:56 AM PDT
In reply to: re

Without any concerns I flip those (per the article) to PIO and back (per the instructions.)

This small thing is a recurring CPU time sink since you can't be sure exactly which DMA or if XP is lying about this setting. If it's less than optimal then you see the jerkiness and more. Let me stop explaining it since I can't write it for everyone.

Read -> http://winhlp.com/node/10 *use the quick solution without regard to what its showing.

Next up is the video card setting. It is completely counter intuitive that less colors is more CPU intensive. Let's skip to the fix. Change the video mode from whatever it is to millions of colors.
Bob

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