I recently purchased a Epiphan VGA2USB LR to record presentation video from workshops where multiple people present during the day.
This device is a frame grabber, it takes the VGA input from the computer and makes images, in fact it makes so many images that one can record video at 30 frames per second depending on the resolution.
I have found this device very nice to use with Camtasia.
The particular things I like are:
- No software needs to be installed on the presentation laptop (this is huge!)
- The ability to record what is being presented including software demos and videos (most local sw can’t record wmv video)
- The ability to record a computer without impacting the computer itself, from a performance point of view (local screen recording can be compute intensive)
- Can record wireless audio on a separate laptop
Here is how the video part is connected, speaker audio can be input to the recording laptop (Computer in this picture) via USB or Mic input.
Here is a youtube video of recording using the VGA2USB LR and Camtasia:
Direct youtube link – http://www.youtube.com/watch?v=R_qDaeeteRw
If you want a in depth review of this little device, check out this blog post by Victor, it even contains a device teardown to see whats inside.