Where do I find a machine that converts home movies to DVD?

I am looking for a machine that can convert home movies to DVD. Does anyone know what such a machine would be called and where I can find one?

I know you can buy a machine that converts Records or Cassette tapes to DVD through the computer. I’m looking for something like that.
The computer programs sound great, BUT how do I get the content OFF the video and onto my computer!??

Isn’t there some sort of machine that plugs into my USB port?