57:16 duration 57 minutes 16 seconds
BB_2013_10_10
01:01:20 duration 1 hour 1 minute
BB_2012_11_15
56:12 duration 56 minutes 12 seconds
BB_2012_09_20
52:14 duration 52 minutes 14 seconds
0114-RogersE.Alton
01:10:19 duration 1 hour 10 minutes
ISYE_6739_lecture_22
01:32:03 duration 1 hour 32 minutes
ISYE_6739_lecture_18