[ZTT] About "outside World"

Just received the german release CD + DVD. I have not watched the DVD right now because I'm in my office, but I have noticed some sound glitch during the intro of Duel (Bitter Sweet) Actually, it's during the first 30 seconds of the track. It sound more like a tape problem , not a problem related to my CD. Did anyone also noticed this? Did Repertoire Records even listened to the tracks before mastering the CD??