Bug#588453: still an issue

[Sean Budd]

This problem still exists in the current liferea in sid(1.6.4).As I would
imagine that the mime type has to be determined before downloading the
enclosure,I'm not sure how to work around this.Here:
"Media files
cnet_2011-02-16-161825.dl.mp4
<
http://dw.com.com/redir/cnet_2011-02-16-161825.dl.mp4?destUrl=http%3A%2F%2Fcontent.cnettv.com%2Fvideo%2F513485%2Fcnet_2011-02-16-161825.dl.mp4%3FADPARAMS%3DBRAND%3D47%7CSITE%3D53%7CSP%3D181%7CPOS%3D100%7CNCAT%3D11455%3A19709%3A&ontId=14106&siteId=145&edId=3&asid=50100266&pid=&astId=31&ltype=dl_dlnow
>
(QuickTime video, 0 bytes)"
is an example of the feed,and You can see it shows the file is an mp4 before
the url.Is there any way to use that info to determine the type?