I've got pops on my CD that weren't there before.

[Tucci]

I just burned some wav. files and an mp3 file to a CDR the other night. I am positive that the files did not contain any pops but when I play the Cd I get a pop right when a new track begins. Where is this coming from? What did I do wrong? The first time I burned a CD with my new CDR drive I didn't get a single pop. Thanks for any help.

Tucci