Hi GaryC. Please note that the General Talk Community is not for technical questions. It is intended to be a place for PC World members to share and discuss off-topic items, and just generally have fun. For further guidelines, please refer to this Discussion. I have moved this Discussion into the Answer Line Community.

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This is my personal Dream PC: http://forums.pcworld.com/blogs/mphenterprises/2007/12/21/my-gift-to-myself

LincolnSpector gave you a nice general idea. To elaborate a little more, digital cameras tend to use "lower bandwidth" (for lack of a better term) storage media and formats. This results in rather highly compressed video content, but in video content that is generally "computer ready" (i.e. no special video editting software needed to get at it). In addition, the optics of digital cameras are more "aimed" at taking still pictures, thus they will have a tougher time capturing nice looking video with motion.

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[soapbox] Backup good...no backup bad!! [/soap box]