[olof ekbergh] “The Apple XDCAM EX 1080p30 (35 Mb/s VBR), 1920 x 1080 (1888 x 1062), Millions, is the rewrapped EX file. This is basically what XDcam Transfer app does. “
The other option you could do is to let the ClipWrap software do the transcoding to ProRes 422 as well as the rewrapping. This way you end up with only one file instead of 2; it still will be larger than the original stream, though, but it is much easier to edit ProRes footage than MPEG2 streams.