You can check out some Canon Elura 100 video reviews on Youtube! Here are some search results for those reviews: Click the videos that give sound / noise tests.
If you are planning on making small video projects and youtube videos, I recommend you buy the Optura. I have heard good things about the Optura (it even has a 1/3" CCD), and Youtube doesn't even have HD capabilities anyway. You probably won't even b...
On my computer is in "Device Manager" it's listed as "IEEE 1394 Bus host controllers" I also have a Canon Optura 50. I use Windows Movie Maker to transfer the video to my computer and it works quite well.