Hi 8, 8 mm tapes and VHS tapes can be converted at home too but you need the right equipment and it will take lots of precious time. Just use a conversion service that will provide you the best quality. You'll need the camcorder to play the tapes and a digital camcorder that can connect to it and produce digital output to perform the task at home. If you don't have the latter, you'll need a conversion device or to install a video capture card in your PC, which has to be powerful enough to handle the process.
San Diego VHS to DVD - The Perfect Solution to Convert Hi8, 8mm and VHS tapes
http://www.answers.com/Q/How_to_convert_Hi_8_and_8mm_tapes_and_VHS_tapes_to_DVD
San Diego VHS to DVD - The Perfect Solution to Convert Hi8, 8mm and VHS tapes
http://www.answers.com/Q/How_to_convert_Hi_8_and_8mm_tapes_and_VHS_tapes_to_DVD