[Gorran Bay]

From Apple Discussion, I learn that:

MXF (Material eXchange Format) is a video container format targeted at professional video and broadcast applications established by Pro-MPEG Forum and SMPTE. It may contain compressed or uncompressed audio and video, and frame-based metadata, include timecode. Video in MXF may be compressed in MPEG-2, DNxHD or any other format.

Nowadays, more and more professional camcorder, like Sony XDCAM and Panasonic P2, record video into MXF format. Meanwhile, most professional video editing systems, such as Adobe After Effects, Adobe Premiere Pro, Apple Final Cut Pro via XDCAM Transfer, Avid, start to support this format. However, it’s impossible to directly either play MXF files in iTunes, iPhone/iPad/iPod, Windows Media Player and PowerPoint, or edit MXF in iMovie, QuickTime, Windows Movie Maker.

In this case, converting MXF to MOV, AVI, MP4, WMV, FLV, and ASF, etc is the most ideal and wise choice.