How do presets handle video...

[bsuska]

I'm wondering if anyone has an understanding of what Premiere/Matrox is doing with certain video I import. Here is the scenario. I import some none interlaced 320 x 240 video into the Matrox DV NTSC preset. Scale to frame size is selected so I have to render my timeline. I'm wondering if this video has now been changed to an interlaced format? Obviously it has been upscaled to fit the 720 x 480 dimension. When I export, would I then need to deinterlace even though my original footage was not interlaced?

Thanks.

[filmboss80]

Premiere is not changing your source files, but creating new preview files for the selected preset, using the Matrox DV codec. The Premiere/Matrox set-up should handle the interlacing, and if the final output looks okay, you shouldn't worry about it. I remember years ago having a Matrox RT-2500 with Premiere, and I could drop MPEG-1 files right in for output to DV without any alterations. Look for a folder on your video drive called Adobe Premiere Preview Files. That is where the convert DV avi files are stored. Look them over.

[bsuska]

So when it is exporting is it accessing the preview file or the orginal source file?