How to record Flash/MP4 live stream ?

[St Devious]

Any suggestions on how to capture a live webcast stream ?

I think it's in Flash/MP4.

How about recording this

http://ispss.istreamplanet.com/nvidia/d/index.html

[poisondeathray]

For true streaming? Not http download?

Some "live webcasts" are not true rtsp/rtmp streaming

If true streaming, you can try screen recorder software or something similar e.g. replay video capture

If it's protected stream (rtmps), you may have difficulties

[Conquerist]

If it's real streaming and you don't mind the lack of a GUI, I'd recommend rtmpdump. You can even use it to download protected streams. All possible protection-related values (filesize of the swf file, SHA256 hash of the swf file, etc.) are passed to the program as command line options.

If you're dealing with a progressive download, rtmpdump won't work, but there are plenty of tools for saving progressive download files, while as far as I know, rtmpdump is the only program that can download protected RTMP streams.

[St Devious]

How about recording this http://ispss.istreamplanet.com/nvidia/d/index.html ?

[poisondeathray]

How about recording this http://ispss.istreamplanet.com/nvidia/d/index.html ?

That's an unprotected rtmp stream

The old Replay media capture works on it

I suspect Conquerist's suggestion would work too

"Fermi" specs have already been confirmed on review sites e.g. anandtech, not sure why you want to capture that?