silence in songsmusic
 

I've downloaded many songs and noticed that in quite a few I find what I call (dead-spots) in ssome a songs lasting for a second or so. Some songs only one dead spot others more
and some are clear and complete....?????

What's the problem? I have a T1 cable connection. I have Norton Anti Virus and a pop-up blocker. Turning them off doesn't solve the problem.
Some songs download clear and complete, some don't.
I always choose the 4 star spots to download from.
Any advice would be greatly appreciated
Thanks!