The slowdown you are seeing is in part due to the fact that you are
rescaling on the fly- from 320x240 to 640x480. Quicktime is usually
slower than .avi, and if you are using something other than
uncompressed you'll see a slowdown from that as well.

Since it is only a 1meg file, your best bet is to convert it to an
uncompressed avi- I converted a 320x240x15fps/"video compressor" QT
to a 320x240x15fps uncompressed avi, set my project to 640x480x29.97,
sized my video preview window to 320x240...and I'm getting 29.97
frame playback, no problem (PII 450).

Dave Hill



ryley fogg wrote:
>>i have recently downloaded the trial version of vegas - i
>>was wondering what kind of performance others were getting
>>with this software.
>>
>>I have a athlon 750 w 128 m ram and a 32m video card with 25
>>m/s hdd transfer rates but when I play back a simple 1 meg
>>.mov file in vidvegas i can only get 7-8 fps (full res)
>>even in preview mode (in draft mode it does 29.97)
>>
>>I'm wondering if the following are issues that may effect
>>performance
>>
>>file type conversion
>>
>>conversion of the 320*240 resolution in the original mov
>>file to 640*480 during playback
>>
>>not using win98se
>>
>>video card issues
>>
>>?????
>>
>>any help would be appreciated - I just finished editing a
>>piece on an old imac and hope to at least get similar
>>performance (ie full screen/res vid playback) from my vegas
>>system.
>>
>>thanks
>>ryley