I just bought Moody Blues 'Days of Future Passed' on DVD-A. I have only listened to it with headphones, but it appears there are some small, but very sharp 'clicking' sounds that come up. I know this is vauge, but any ideas? I have the normal CD and it works fine (CD player hooked up with toslink cable, just like the DVD player), but the DVD-A seems to be acting a bit funny. Thanks!