Resolution/Workaround:

Currently, our product supports only on DV camcorder and it requires DV/USB and Firewire to initiate the video capturing.

As for VCR, muvee do not support RCA cables or any form of analog video capture. Try using other video capturing software which supports VCR, RCA cables and copy into your PC. After transfering into PC as a video file format, add the files into muvee and make them into a production.