Video names:
Video_1_Paper_ID_12.mp4
Video_2_Paper_ID_12.mp4

Codec for both videos: 
H264 - MPEG-4 AVC (part 10) (avc1)

Link to codec (if needed):
https://www.videolan.org/developers/x264.html

Note: Videos were originally much higher quality, but were reduced to meet the 20 MB constraint.