BluesCam, don't worry about it. What difference does it make anyway? EVERY video clip on the EX1 is buried in it's own folder with four other support files. So even if you could read the native MP4 files, you'd still have to go through some kind of a process to exract all those MP4 files from their own folders and put them into one place so you could work with them more conveniently.
The unwrapping from MP4 and re-wrapping to MXF or MOV happens automatically during the transfer and it doesn't add even one second of time to the transfer time. There's no transcoding or anything else, it's more like just re-naming the file.
So what's the big deal? It may seem that way until you work with the camera, but once you've seen how seamless it is, you never give it a second thought.
There's a few things to dislike about the EX1, but that's not one of them.
Doug
www.VortexMedia.com