1
00:00:15.500 --> 00:00:20.000
45 97 50 65 clickclass1
http://people.xiph.org/~xiphmont/demo/neil-young.html

2
00:22:52.500 --> 00:22:56.600
40 60 12 23 clickclass2
http://www.wikipedia.org/

3
00:23:04.000 --> 00:23:08.800
9 45 12 25 clickclass3
http://ocw.mit.edu/resources/res-6-007-signals-and-systems-spring-2011/

4
00:23:29.000 --> 00:23:35.288
50 94 28 52 clickclass2
http://music.lousyrobot.com/track/andy-warhol-is-gone