mp4 playback with sound problem

I downloaded some music videos from youtube as MP4 (for testing purpose). It's 720p videos. So far, all of them played fine except for this two videos where as certain part, there will be no sound for like few seconds. Then sound comes back. I played the same video on a PC and it is working fine. The part where sound is gone happen exactly in the same location.

Any idea on how to tackle this problem?

no one have this problem?

I tried downloading same video from youtube but it's another youtube link. Still have same sound issue which happen in exactly the same location.

Would appreciate if someone could download the same file and test it in their serviio. Here are the link to the files in youtube. Please use saveyoutube.com to save it as mp4 file and test it in your serviio.

1) http://www.youtube.com/watch?v=7NJqUN9TClM
2) http://www.youtube.com/watch?v=kM3IfVl66jo

Goto www.saveyoutube.com and paste the link into it. Then download 720p files in mp4.

Let me know if you also encounter sound problem at exact same location everytime you play the in serviio.

I am having the same problem.....streaming MP4 to a Panasonic ST50 and a Sony BDP 570 the same issue at the same timecodes on the video.