I am transferring mxf files from xdcam to edit in FCP6. Upon compressing the files to ProRes, most of the files converted fine, but some do not. The bad files turn up as a fat white bar across the screen. Looking at the thumbnails of the mxf files of the shoot disc in the xdcam transfer software window, these bad files are marked "no codec".
What does this mean? Why were the other files OK?