How Do I Record Guild Battles?

So yeah me and my guild did this reallyyy cool battle and I was wondering how I could record it... Do I need special equipment? And how long will it stay there?

You could try direct capture from your system using a program like FRAPS or something similar, edit it, recompress and dump it on you tube.

The downside of this of course is that it will all from the recorders POV.

AFAIK the only ones recorded by Anet are rated and ladder tourneys, someone correct me if im wrong.