pls help me todownload rtmps stream video

[ksai.mb]

C:\>rtmpdump -v -r "rtmps://53c7c8e287199.streamlock.net/vods3" -a "vods3" -y "m
p4:amazons3/coursekart/videos/1521/topics/Linear Algebra - Part 1 of 7_qtp.mp4"
-o "sample.mp4"
RTMPDump v2.4 GIT-2015-12-14 (Compiled by KSV)
(c) 2010 Andrej Stepanchuk, Howard Chu, The Flvstreamer Team; license: GPL
Failed to open file! sample.mp4

[confused.com]

rtmpdump -v -r "rtmps://53c7c8e287199.streamlock.net/vods3" ^
-a "vods3" ^
-y "mp4:amazons3/coursekart/videos/1521/topics/Linear Algebra - Part 1 of 7_qtp.mp4" ^
-o "sample.mp4"




C:\>rtmpdump -v -r "rtmps://53c7c8e287199.streamlock.net/vods3" -a "vods3" -y "mp4:amazons3/coursekart/videos/1521/topic
s/Linear Algebra - Part 1 of 7_qtp.mp4" -o "sample.mp4"
RTMPDump v2.4 GIT-2015-12-14 (Compiled by KSV)
(c) 2010 Andrej Stepanchuk, Howard Chu, The Flvstreamer Team; license: GPL
Connecting ...
INFO: Connected...
Starting Live Stream
INFO: Metadata:
INFO: trackinfo:
INFO: language eng
INFO: timescale 12800.00
INFO: length 107154432.00
INFO: sampledescription:
INFO: sampletype avc1
INFO: language eng
INFO: timescale 44100.00
INFO: length 369180224.00
INFO: sampledescription:
INFO: sampletype mp4a
INFO: audiochannels 2.00
INFO: audiosamplerate 44100.00
INFO: videoframerate 25.00
INFO: aacaot 2.00
INFO: avclevel 30.00
INFO: avcprofile 100.00
INFO: audiocodecid mp4a
INFO: videocodecid avc1
INFO: width 720.00
INFO: height 480.00
INFO: frameWidth 720.00
INFO: frameHeight 480.00
INFO: displayWidth 720.00
INFO: displayHeight 480.00
INFO: framerate 25.00
INFO: moovposition 40.00
INFO: duration 8371.44
3792.531 kB / 78.06 sec (0.9%)