Unknown Sound in clip

Unknown Sound in clip is a screamer video uploaded by YouTube user named ThePopUpVideos in May 8, 2010.

The video starts with Windows Movie Maker on a red background with top grey box and text "Track 4206#" then, the text asks you to turn up the volume. with the music being quiet, and now you can hear the introduction of the sound track. after the clip, the text gets interrupted by a demon child from Dead Birds with the same scream from Where's Waldo?.

Link
NOTE : The following video contains a screamer!
 * youtube.com/watch?v=ND6xzsdbPIY