I added a html 5 video tag to play the video's I uploaded to dspace. The video can be player, but I cannot seek to parts which aren't downloaded. 

The command "curl -H Range:bytes=16- -I localhost:8080" gives "Accept-Ranges: bytes" back, so tomcat understands "content-range". Does this mean that the servlet handling the file downloads doesn't implement content-range? What other options do I have within dspace to do this or will it be difficult to implement content-range on servlet level?