"Basically your player needs to figure out the byte offsets for desired time points according the media file's metadata. "
Any ideas on how to do that?
A way to solve mye problem could be that my player still sends the request file.mp4?start=60 to IIS.
I build a handler in IIS that maps start=xx to the correct byte-range.
I (hopefully) get the right content to the player...
But, how do I calculate the byte-range?