Portal 2 failthrough part 1...

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MP4 (Source) 1280 x 720 191.97 MB
FLV (Flash) 640 x 360 80.65 MB
FLV (FlashHD) 1280 x 720 140.82 MB
MP4 (480p) 640 x 360 48.15 MB
MP4 (720p) 1280 x 720 147.15 MB