what plays recorded video

hey guys, i've been messing around with recording a video set with actual music videos that have audio in them. after getting done with my set i'm wanting to go back and watch it but for some reason it's only giving me the video and no audio when i playback. iTunes is supposed to be what opens the file but does nothing, when i bring it into windows media player it plays the video, but no audio. can anyone give me some tips on what i'm doing wrong?? recently updated to Cross DJ 3.4 running windows 10 and my specs are fine. thanks