I just brought home and watched the full South Park Season 1 set. Several times per episode on Disc 1 and 2 there is an intermittent "tick" or "click" sound on the audio track. These sounds seem to happen less and less as I watch each episode and I didn't notice them at all on Disc 3. Has anyone else noticed this sound? I tested my system with many other DVD's and no errant sounds have come over the speakers, and when I go back to the South Park DVD the sounds are there again in the same place. Another thing I'd like to claer up is will the Audio Commentary CD be available in Canada? I went to the Comedy Central site and printed off the form to send in to get the CD's and at first it mentiones a Canadian Money Order price but at the bottom states the offer is only available in the US. I appreciate any help/answers you can give me.