Does it say 004GHZ.mxf or something similar? Or HG4783IKSJHD9882094048DLJSH.mxf...REALLY long string of letters and numbers?
The short one is a P2 file, the long one is an Avid file. Depending on where it comes from is how you deal with it. But really, you might have to look into Raylight, or Calibrated or MXF4QT...third party MXF solutions that allow FCP to open MXF files.
Shane
