Created attachment 8830 [details] [review]
proposed mimetype

References:
http://msdn.microsoft.com/archive/default.asp?url=/archive/en-us/directx9_c_summer_03/directx/graphics/reference/ddsfilereference/ddsfileformat.asp

Note that the file format should have a four-characters magic at the beginning of the file, but I haven't been able to find that out.

According to [1], those file start with "DDS".

[1] http://filext.com/detaillist.php?extdetail=DDS

Wow! And i thought that filext.com was not a so-official reference :)
Do you want an updated patch or can you easily add the magic to my patch? ;)

Fixed, closing. Thanks.