Justin TV uses RTMP flash video streams. Most streams at p2p4u.net come from Justin TV as well. Many others like cycast.tv, justin.tv, freedocast, ustream.tv, livestream.com use RTMP flash video streams as well.
Also p2p4u.net Windows Media streams like the ones from BBC.
Despite the name of the web-site few streams at p2p4u.net use p2p TV players like TVUPlayer.
All these streams can be recorded with
screen video capture software. Depending on your Internet connection, it might be the best way to record live streams.
To record RTMP live flash video stream I suggest to use
Replay Media Catcher and
Jaksta. Both programs support Windows Media streams as well.
The best programs to record Windows Media streams are
WM Recorder,
WebVideoCap and
GetASFStream, but from these programs only
WM Recorder can record RTMP and HTTP flash video streams as well.
To record from TVUPlayer you can use freeware
VLC player.
Related threads:
Downloading/Capturing/Ripping/Recording justin.tv live RTMP .FLV flash video streams?
Help capturing Ustream.TV on-demand video stream (rtmp:// .flv)
www.livestream.com: How to record live TV streaming from Live Stream (rtmp:// .flv)
www.freedocast.com: Problem downloading TV9 Telugu Live RMTP video stream
Using freeware VLC for recording TVU Player stream