EXACT links to said track please.
Just so you know, many free tracks are purposely mangled so one can decide if they like the tune and then to go buy it.
With what's in your post, no one can see if the track is indeed mangled or it's your issue.
I have dwnlded many trks form various free sites such as: cnet's, the old mp3.com, ampcast. mp3.com.au,
and on several trks mostly the space and quiet ambient ones,there is Lo and Hi peaks distortion. It is as if the gain is to hi but overall trk volume is normal.
I am using old P II process,SB Live soundcard, Nero burning rom. drivers and updates are current. It is a pain because the music is great until the distortion occurs, ruins whole song! Help please with any thoughts