Not all camcorders can be used as webcams. Since this is a still camera, I would not expect it to be able to be a web cam either...
Your camera is not a camcorder. It is a still camera that happens to take highly compressed video clips. These files are stored on your camera's memory card and can be transfered using the USB cable. You already know this.
There is nothing in the manual that even hints that it can be a webcam. So I will say it is not possible.
Since you can replace the memory card, with a bigger one, it is difficult to say how long you can record... If you need more video recording time, then just get more video cards. It says that on page 83 of the manual, "recording time : memory capacity dependent"... It will also depend on the quality of the video you select - higher quality uses more of the memory card space and looks OK. Lower quality uses less space, but does not look as good.
Answers & Comments
Not all camcorders can be used as webcams. Since this is a still camera, I would not expect it to be able to be a web cam either...
Your camera is not a camcorder. It is a still camera that happens to take highly compressed video clips. These files are stored on your camera's memory card and can be transfered using the USB cable. You already know this.
There is nothing in the manual that even hints that it can be a webcam. So I will say it is not possible.
Since you can replace the memory card, with a bigger one, it is difficult to say how long you can record... If you need more video recording time, then just get more video cards. It says that on page 83 of the manual, "recording time : memory capacity dependent"... It will also depend on the quality of the video you select - higher quality uses more of the memory card space and looks OK. Lower quality uses less space, but does not look as good.