I was tired of browsing demos ingame and it seems that the amount of listed demos ingame is limited.
So I created this little tool that allows you to view a demo in CQ3 by executing the demo file in windows (kinda like seismovision)

all you have to do is :
1. copy the cq3demoviewer.exe into your Quake folder (same as ChallengeQuake3.exe)
2. rightclick on a demo file, select "Open with" and set the cq3demoviewer.exe as default

the source is inside the zip file for those who are interested (it's not nice but it works :p )
only testet it on Win XP

hosted at rapidshare atm: cq3demoviewer.zip(Rapidshare)