I am in the process of digitizing old VHS tapes using a VCR connected to my PC. I had copied a few tapes when the device began to display a message that the heads needed to be cleaned. Using this wet system has allowed me to continue with my project. There are no instructions included, but one simply wets the wick on the spindle from the small opening in the bottom with the included fluid (alcohol by the smell) and run it through a cycle. It worked well for me.