Help with this rtmpdump [Updated]

[pow]

Hey guys!
I am trying to download these videos for my exams from a site, but so far I am able to download only partial [4-5 mins] of the 1 hour video.

Here is what I am doing:

rtmpdump -r "rtmps://53c7c8e287199.streamlock.net/vods3/" -W "http://d2190hpfa85jkd.cloudfront.net/v11/student/swf/flowplayer-3.2.18.swf" -y "mp4:amazons3/coursekart/videos/1521/topics/ER Diagrams - Part 1 of 1_qtp.mp4" -o b.flv

Here is the page source code:
http://pastebin.com/raw/iJpRfJh6


Can someone please tell me what I am doing wrong ? and how I can download the full video?

[pow]

I am now able to download the video finally, but only the first few seconds, can someone tell me how I can download the entire video?
I have update the first post.

[pow]

Just had to increase the buffer size!! And its done!

-R --buffer 2000