iTunes not playing video sound

[X-Factor]

I recently exported a few home videos with quicktime (in .mp4) for use with iTunes. But now when i play the videos on itunes there is no sound. Is this normal? Or have I done something wrong?

 

[reberto]

Do you get video picture? Are you using Quicktime 7.0.3?

I recently exported a few home videos with quicktime (in .mp4) for use with iTunes. But now when i play the videos on itunes there is no sound. Is this normal? Or have I done something wrong?

 

[X-Factor]

Yup I can see the picture, and yes I used Qucktime 7.0.3