Hi ... Welcome to the forum.

If you are playing the files on your Limewire player, I would suggest using a different player as the LW player is not that good. something like iTunes or Win Amp. You can dissable the Limewire player in options>player.

Note also that occasionally when playing a file for the first time in iTunes at any rate, there may be a break near the beginning while the playback level is determined. This will dissapear at subsequent plays.

Some files are faulty, but I think you will find doing this will make a huge improvement

Let us know if it helps