1080 30p Quicktime playback not smooth ...

Like an increasing number of people, Videography Lab has bought into the use of DSLR and high end digital cameras to shoot 1080 at 30 frames per second. We shot test footage with a Canon SX1 IS that renders it's video files in Quicktime. Playback directly from camera via HDMI cable to a SONY Bravio 1080p monitor was smooth as silk.

We copied the test file to an ASUS G71GX Notebook with Intel Core Quad Q9000 @ 2.00GHz, 6GB RAM, NVIDIA GeoForce GTX 260M with 1GB video memory driving a 1920x1400 pixel display and two 500GB 7200rpm drives = a Terrabyte of storage with very few programs installed.

We configured the Windows Vista Home 64 bit system to "Maximize Performance". Then we opened Quicktime Version 7.6.4 Professional to play the test video which contained slow pans and zooms on a bright sunny day. We selected "Full Screen" view and took a critical look. The pictures and sound are stunningly beautiful but there is a slight skipping or lack of smoothness that indicates this system is not able to playback 1080 30p faithfully.

Does anyone have any suggestions on how to achieve smooth playback?

Thanks

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