This should be possible if one of the camcorders can accept AV inputs - most lower end camcorders only allow AV output.
While there are a number of camcorders now using USB exclusively for transfer, almost all of those camcorders record to either a hard drive or flash memory card. They use USB because all computers include a USB connection while many still do not have...
The biggest difference between MiniDV and DVD camcorders is the video storage format. MiniDV camcorders record to tape. DVD camcorders record video on DVD. You get 60-90 minutes of video on a single MiniDV tape. You get about 20 minutes of video on a...