должно помочь http://forum.malbred...?showtopic=2847
вроде в настройках видел поддержку нескольких камер. только устанавливайте VH toolkit (несколько программ)
Tool which allows to mix, synchronize, split and share any media or screen content
VH Toolkit is a useful suite that includes the following components:
· VH Multi Cam Studio
· VH Player
· VH Capture
Main features of VH Toolkit:
VH Multi Cam Studio:
simple and easy interface
many types of capture hardware supported
many types of file formats (videos and images) supported (with internal decoder)
URL sources supported
real-time video and audio frame-accurate mixing
real-time synchronize of video and audio sources
mixer output can be used in third-party encoders, capture and broadcasting applications
color correction, alpha blending, chroma key features supported for each input stream
interlaced sources supported
reordering of the input stream
VHScrCap, Skype, Flash supported
VH Player:
a lot of file types supported - avi, asf, flv, mov (inc. 3gp, 3g2, psp, mp4), mpeg, vob, dv, flac, m4v, mp2, mp3, wav, etc.
a lot of codecs supported
DVD vob files supported
auto select between internal and external decoder
playlist supported
Direct3D rendering engine (the different hardware multi-pass video effects will be supported in next version)
comfortable control
scale, aspect ratio correction, rotate, deinterlace features
color correction
skin support
VH Capture:
simple and easy interface
many types of capture hardware supported
many types of capture formats supported
shot mode (frame-by-frame capture)
pause during capture
precise video and audio synchronization
capture statistics
fast and highly optimized
file segmentation
VHScrCap support
возможно что то из этого подойдет http://pctuner.ru/list-c-soft05.html