Sony 8 mm D8 cleaning tape tested. I have an outdated Hi8 library from a very old Sony and Digital8 from my not so old Sony camcorders. I've recently started importing these tapes into my computer for archiving on my Digital8 camcorder. A buzzing sound appeared during playback, which was recorded in the archive. These camcorders are becoming relics, so a cleaning tape was badly needed to complete the archiving. I ordered and received a brand new shrink-wrapped cleaning tape. A passage into the camcorder and the hum is gone. Archiving will be silent! A must if you're still procrastinating on archiving your old tapes. This is necessary for the correct operation of the camcorder.