FCP to DVD Workflow for DVX-100 30P

S

ssdimit

New member
Hey Everyone,

I'm having some issues with some footage that I shot in 30P with my DVX-100. The end product is a DVD, but after many different exporting combinations and DVDs I am still seeing interlacing/aliasing issues. Here are some specific things I've tried in each program.

FCP- changed my sequence field dominance to "NONE" even though FCP tries to interpret my 30p footage as interlaced. During editing I did use an external monitor, which did not display any aliasing. Then I exported it....

...as QT reference file with current settings, QT reference file with the sequence settings, QT reference file with uncompressed 8-bit settings and sent directly to Compressor.

In compressor I used the DVD 90 Minute Best Quality Preset. The A/V attributes of the QT reference files still identifies field dominance as bottom first, so I changed that to Progressive, and when that didn't work I also went under frame controls and changed the output to progressive. Same results.

Lastly I put the reference files directly into DVDSP for compression, but that didn't work either.

Does anyone see where the problem might be?
 
Why are you exporting a reference file? All that does is create a shell that references the original media. Rather, why not export a FCP movie using current settings? That will actually write an entirely new QT movie that you can then put through Compressor and DVDSP.
 
As far as I can tell a reference file takes up less space than a self-contained file and still works when sent to compressor/DVDSP.

But I figured out my problem... Apparently the DVX-100 30P isn't true progressive so the FCP sequence needs to have a lower/upper field dominance selected for it to display properly.
 
Actually it is true progressive but that doesn't really matter as 30p exists as 60i in NTSC land. All you must do is set Progressive 29.97 as you edit in FCP to make your transitions and effects render properly. Then make a 29.97 MPEG-2 when you go to DVD. There is no such thing as a "30P MPEG-2" it's just wrapped into 29.97/60i.

Noah
 
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