FCP insists my audio is NTSC, causes sync problems

I have a project with a single video track from a still camera at 30fps, which I converted to ProRes at the same frame rate. I recorded audio separately and want to replace the camera audio with this.
When I import the audio track, it drifts out of sync with the video. I was able to track the problem down to the fact that FCP is playing it back at a rate adjusted by the NTSC 1000/1001 factor. Exporting the project as XML shows that the audio has NTSC=TRUE. My sequence is set up as 30fps (not 29.97) and the video has NTSC=FALSE as expected.
I am going crazy trying to fix this. I have tried several sequence settings, changed my default sequence settings, edited the XML and re-imported but to no avail. FCP insists that my audio be played at the wrong rate. I finally edited the audio in Soundtrack Pro and time-stretched to compensate. This is nuts.
I thought I'd worked with media like this before without similar problems. Why is it doing this? And what does NTSC have to do with a pure audio track anyway?
Bruce

I may have worked my way around this for my current project: I tried harder to make my default sequence settings 30fps and it seemed to stick this time. The imported audio did not get the NTSC attribute.
I still don't understand why I have to change my global application defaults to avoid behavior that I don't see why anyone would want.
Bruce

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MAC Pro Mac OS X (10.4.8) FCP Studio
MAC Pro Mac OS X (10.4.8) FCP Studio
MAC Pro Mac OS X (10.4.8) FCP Studio

hi vcp
welcome to the forum, glad you made the switch ... you won't be sorry (although you might be wondering at the moment!)
1. nothing wring with that
2. no
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what camera did you capture from? did you capture with FCP?
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FCP insists my audio is NTSC, causes sync problems

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