It is the fastest screen video recorder on the market, with a speed comparable to TechSmith's Camtesia Studio, and way better than any other similar software we have tested.
Capture AVI video from the full screen, a window, a rectangle region, or a defined area around the cursor. Decide whether you want the cursor image to be included. You can even record audio into the AVI, from the microphone, line-in, or speakers.
River Past Screen Recorder Pro allows you to record to WMV files using Microsoft's Windows Media Screen codec, which is specialized in producing high quality and small screen videos.
Pro Version can record to WMV, MKV and OGM formats, while standard version cannot.