Jahern,
Somehow or another I didn't pick up on the fact you were having the difficulty with CDG files...that should have been obvious, but I missed it, and became focused on WAV
I imported 10 cdg tracks to the hard drive and opened each one into Keyrite.
There is a very distinct pop as a track opens with a upward key change. This happened on all ten tracks. All ten were KHP produced.
I then grabbed a Sound Choice disc at random and imported a track into the hard drive. A definate click when selecting a upwards key change.
You're not alone, old buddy
It sounds to me like the pop happens just as the graphic title page starts to load because the popping is almost instant as one clicks the upward key number and is followed by a few seconds of silence before the audio kicks in.
George