You can get a digital 8mm will play analog 8mm if you shot in standard mode and will record in DV digital on 8mm tapes.
http://www.sonystyle.com/is-bin/INTERSHOP.enfinity/eCS/Store/en/-/USD/SY_BrowseCatalog-Start?CategoryName=dcc_DICamcorders_Digital8HandycamCamcorders&Dept=cameras
Sony still makes 8mm analog cameras.
http://www.sonystyle.com/is-bin/INTERSHOP.enfinity/eCS/Store/en/-/USD/SY_BrowseCatalog-Start?CategoryName=dcc_DICamcorders_Hi8HandycamCamcorders&Dept=cameras
Or buy a good used 8mm camera to play your old tapes and buy a MiniDV for your new recordings. John