Figures people would make fun of this... it does sound rather odd and some of the proposed reasons for why come off as .. crazy.
But, try this, grab a cd with an ambient sound with reverb on it that happens within the first 15-20 seconds of a cd.
1. insert the disc, press play, and listen to the first 15-20 seconds.
2. press the back key (do not press a number key, do not press stop, do not rewind).
3. play the track again, listening carefully to the reverb tail or space around the instrument.
It's uncanny, but I definitely hear it, and so do other people I've done casual experiments with so far. It's definitely better the second time around, and seems to stay better throughout the whole cd then.
If you can't hear it - good for you. Seriously, be happy.