Study tips from students

(x)
MOV (Source) 1280 x 720 28.45 MB
FLV (Flash) 640 x 360 5.34 MB
FLV (FlashHD) 1280 x 720 12.38 MB
MP4 (480p) 640 x 360 4.05 MB
MP4 (720p) 1280 x 720 12.97 MB