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That depends on many factors. What kinds of outputs do those devices have? Look around online for video capture devices which take those as inputs. For instance my Canopus ADVC-50 (I think) takes normal left/right and video inputs that a VCR or DVD player might have as outputs. Some models take S-Video as input, others can take component video, etc. I like my Canopus because it converts the video to DV so I can record and edit it directly in iMovie on my Mac.
 
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