Video stutters/judders on playback

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Level 1

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Video stutters/judders on playback

I have noticed that when playing movies purchased from itunes on my apple tv the video seems to stutter, particularly, for example, when the camera pans across the screen. The video doesn't stop and start, it just seems to "judder" as it moves - almost like it is skipping frames. These are movies stored on the Apple TV (not streamed from my mac). The ATV is connected to my tv with a HDMI cable. Anyone have any thoughts on this?

iMac G4 1GHZ 17", Mac OS X (10.3.x)

Posted on May 9, 2010 3:14 PM

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Answer 1

May 9, 2010 3:47 PM in response to Alec Hughes

Where are you located, it's possible you might have your output set at 50 Hz, itunes movies are encoded at 24 fps and on some tv sets might be best played at 60 Hz.

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Answer 2

capaho

Level 4

3,677 points

May 9, 2010 6:42 PM in response to Alec Hughes

That's a frequent problem on my ATV. The only thing that clears it is to reboot the ATV by unplugging and replugging it.

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Answer 3

Alec Hughes Author

Level 1

15 points

May 10, 2010 12:56 AM in response to Winston Churchill

Thanks for the advice. Dumb question, but how do I change this?

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Answer 4

May 10, 2010 2:56 AM in response to Alec Hughes

settings/Video & Audio/Resolution. 50Hz options are marked 60 Hz are unmarked. This is usually only a problem for users in PAL areas (europe for example) and doesn't affect all tv's, I have one from five tv's that require me to change resolution when watching purchased content (24 fps), I need to change it back watching PAL (25 fps) content though.

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