Since iPhone 3.0, Safari won't play m4v files
I have published various iPhone-ready video files online. They are all encoded in the MP4 container with the h.264 codec and AAC-LC sound. Until now I could just create these files, rename the .mp4 extension to .m4v and upload these files. Then when I enter the url of the .m4v file in mobile safari, or click on a simple a href link to that .m4v file, it would play on the iPhone as a progressive download.
Since i've updated my iPhone to the latest 3.0 firmware, these movie files won't play no more. When I click on al link to the m4v file, it says: "Download failed, Safari can't download this file" (that's my own translation of the Dutch: Downloaden mislukt, Safari kan dit bestand niet downloaden)
On another site of a professional dutch newspaper: http://m.vk.nl, the files are also not working anymore, but on another site like veoh.com the video's do play from safari.
Could it be that I have to use some kind of embed code, or could the video codec/container be the problem?
An example of one my files that is now not working anymore:
http://www.xs4all.nl/~menzil/casper/afstuderen/UC_iphone.m4v
I hope to get this problem solved soon, thanks for your help!
iPhone, iPhone OS 3.0