XDCam files cannot be opened.

I've got a collection of XDCam files (shot on a Sony EX3). I can't seem to open them in FCP7 or X, or in Compressor, or in MPEG Streamclip, or with ClipWrap. All these apps say something like 'Error trying to open source media file'.

But I can open them with the VLC Player. And they play fine in the VLC Player.

I don't have the original metadata folders, only the .MP4 files. I'm trying to think of a work around. I just want to open them and convert them to ProRes. I'm wondering if someone could suggest another app, or some way I could get these opened in an app that can convert them.

All ears,

Ben