Currently Being ModeratedSep 8, 2013 9:28 AM (in response to ajay_a86)
If the answers to lllaass's good questions are the cause of your problems, here are some workaround suggestions:
• To Record video directly into iMovie from an external source, connect a tape-based camera or camcorder.
• If you want to record video clips using a USB webcam, you can record into Photo Booth
or QuickTimeX Player and import the recorded clip into iMovie for editing.