A little "Pop" at the beginning of a track?

[jdavia]

I know you were using Keyrite to change the key. I haven't used Keyrite even though I have it. I change key in my mixer or in Hoster when in play.
I was thinking about KPro where I made a song that pops at the beginning like yours does.

So yours does it with the disc too, the pop might be on the disc. Re-recording it will do the same. Is it only songs from that disc?
Still don't think it is your computer or the drive.