Download from HockeyStreams?

[skylten]

Hi,
I'm new here and basically a beginner on stream capping stuff. I've been trying to grab RTMP streams from Hockeystreams.com(Premium membership required to access streams). It seems like it's pretty complicated since they have secure streams etc. I have managed to grab them in real time(using ffmpeg or Replay Media Catcher) but I'm looking for a way to download games faster(when it's not a live stream).
I was wondering if rtmpdump would do the trick? I've tried it a lot but I mainly get this error message:

ERROR: RTMP_ReadPacket, failed to read RTMP packet header

This is what I have right now(with some changes):

rtmpdump -r "rtmp://173.255.134.252:1935/ondemand?token=K?lXsMH2VmdNQogtF3icFcvKkS2RCn/nhu5/Izu" -W "http://www4.hockeystreams.com/swf/GrindPlayer.swf?token=KlXsMH2VmdNQogtF3icFcvKkS2RCn/nhu5/Izuc++lAWGTDLFbB6Prs41Hwjda73E+ooODn14vFqYGNnagQBpg==&c=1391364358561" -o "test.flv"

I used URL Snooper to get the RTMP and SWF links, Hockeystreams themselves provide a m3u8 link for viewing in VLC:

http://hscontent.com/ondemand/eu1/02012014/17404HD.m3u8?token=KlXsMH2VmdNQogtF3icFcvKkS2RCn/nhu5/Izuc++lAWGTDLFbB6Prs41Hwjda73E+ooODn14vFqYGNnagQBpg==

Again, I'm a beginner so I'm thankful for any help!

Cheers,
skylten