Thanks for responding, Craig. So I understand, the xdcam ex 1 will always give me a mp4 as a finished file–there is no other wrap around file for HD. The only way to get a mov file is to export it using the XDCAM transfer program.
I just wanted to double check because I don´t have the camera in front of me, the DoP is away for a few days. As I said, I´ve edited from the XDcam on Avid and FCP, and never any problem–footage is easy to work with and looks great. I´m willing to give a client the benefit of the doubt, but always want to be sure before I insist on what I think to be correct.
You´re right that the thread has nothting to do with xdcam, but they sent it to me as an example of how fcp doesn´t support mp4–even though the post says that the writer has a system problem, and that fcp can work with those files.
Once again, thanks for your clear and quick answer.