MPEG2 Video is not smooth in Quicktime Pro Player

I have a MBP with Core2 2.4Ghz (2GB RAM, 250GB SATA HDD).
I have a bunch of mpeg2 files downloaded from my Canon HV20 HiDef camcorder. When I play the files with Quicktime Pro with MPEG2 Component, the video looks very very jerky. The CPU usage is not too bad, all other applications behave OK.
On the other hand, if I use VLC to play the same file, the video is lot smoother. CPU usage is roughly the same.
FYI, the video is 1080i.
Can someone suggest some solution? My problem is, I want to watch these videos from Frontrow and VLC is not a solution.
The video plays fine in Windows XP, Vista and even in Linux in any player I tried so far.
This is really killing me, any solution is appreciated. I definitely do not want to go back to Windows for my media.
Message was edited by: vrkiran

Quicktime does play DVDs OK. Its not as smooth as VLC, but very acceptable.
However, my MPEG2 video files are Hi-definition files from Hi-definition camcorder. These are 1080i (1920x1080 interlaced) files.
These files play perfectly smoothly on the same Mac when I use VLC player.
When I use Quicktime player, they are very jerky. Its hard to quantify how jerky it is, but just a naked eye guess would be 2 frames out of 5 are vanishing. Sound is smooth though, no hiccups in sound.
I hope that describes my problem better.

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If you have questions: http://www.videora.com/en-us/Converter/guides.html
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Message was edited by: SDMacuser

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Thanks! Yours works. May I Add?
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Fixed the problem for me
You're welcome
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Thanks! Yours works. May I Add?
¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬
Disable Direct3D acceleration in the player you are using.
If you use VLC media player, Go to preferences, Video, And under output, change from default to "Direct 2D video output"
If you use Quicktime, Downgrade to Quicktime 7.6 or upgrade to quicktime 7.7.3 and Go to
Edit --> Preferences -->Quicktime preferences.
Under that, go to advanced tab, and uncheck "Enable Direct3d acceleration" (3'rd box)
Fixed the problem for me
You're welcome
¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬

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