You blanked out everything so it's impossible to know the file type. But try a different file-type if suspicions as AaronWalkhouse suggested prove valid. eg: Cant search well help & try mpg or mpeg, or avi depending upon which one is not the one you found. Bitzi research it also to see "if" there are user responses to that file.

BTW did you try to browse/direct connect to the hosts of the file you found that you couldn't connect to? There are fake Ultrapeers out there, & as AaronWalkhouse suggested, perhaps it seems there's fake hosts also.