Doesn't work help me

[Notavailable]

Dear the more able people (the whole world) ,
I've been sitten on this problem for days, but it still doesn't work...
Actually it's an easy problem. I' trying save an video bout dancing, using anything I found, save-video-plugins, some programs and even rtmpdumb. At the last one I don't know how to operate this. (yes, I've read tutorials, but those didn't helped much)
Could someone teach me how to do it, please? Using this video for example, http://www.getthedance.com/course/vi...nge-trennungen ,or any other videos on this page.

[ceppu36]

try ffmpeg this link rtmp://cdn.getthedance.com/cfx/st/p4260066280082/flv/short/0082-010?Expires=1419188179&Signature=JpM4EW3FjFl8o65mj itosyECp1Zczea9Q~pAb5xysyNr2~CU5IKc-9fxSOSqQc6rfQxzoABtl6-Pc0Vt4M~Yud8TZFcjBm57U6yn1kYN0xKkB67nP0Rj6vwBIJcaI 26CReu1a0oxIV6h8Okha7tCiU3JcoXHGupUwBFHJKaHYmk_&Ke y-Pair-Id=APKAJFM7BQZ4CMACDVPQ

[hasomaso]

hier ist der code für rtmpdump

rtmpdump -r "rtmp://cdn.getthedance.com/cfx/st" -a "cfx/st" -f "WIN 15,0,0,246" -W "http://www.getthedance.com/flow3/flowplayer.commercial-3.2.16.swf" -p "http://www.getthedance.com/course/video/discofox-ubergange-trennungen" -y "p4260066280082/flv/full/0082-010?Expires=1419189019&Signature=h-dsndjmvidXTtZArOkmCFaxWzsy1tTgV1i0Vq0ENtLvhiTR4DC5ZJAZYm2weU4zaqgc3DGdi2U-j9AqNRTMVl734m9D0gHein2-xWdGSS9Y41VvoeVHJrevuj4mpjuQ76twG3HUXcj~OBWK5Sdv7ACLHvpqeAtoHB~BSFO5t5M_&Key-Pair-Id=APKAJFM7BQZ4CMACDVPQ" -o "ausgang.flv"

RTMPDump v2.4 GIT-2014-07-07 (Compiled by KSV)
(c) 2010 Andrej Stepanchuk, Howard Chu, The Flvstreamer Team; license: GPL
WARNING: You haven't specified an output file (-o filename), using stdout
Connecting ...
INFO: Connected...
Starting download at: 0.000 kB
INFO: Metadata:
INFO:   duration                645.68
INFO:   width                   400.00
INFO:   height                  300.00
INFO:   videodatarate           400.00
INFO:   framerate               25.00
INFO:   videocodecid            4.00
INFO:   audiodatarate           96.00
INFO:   audiodelay              0.04
INFO:   audiocodecid            2.00
INFO:   canSeekToEnd            TRUE
6975.501 kB / 103.56 sec (16.0%)

[Notavailable]

Thank you very much hasomaso, but how did you do it?
Could you tell me the steps so that I can do it at my own?

To ceppu36: Thanks too, but unfortunatly I'm really unfamiliar with ffmpeg

[hasomaso]

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