There are three different grades of Sony tape including DVCAM (the best). Not everyone knows that it is compatible with mini DV but it is. As of March 2001, Panasonic has introduced a brand new series of Professional DV and Master DV. New full size lenghts too...(posted 8421 days ago)We answer questions about the differences in DV tape almost daily, so feel free to give us a call or drop me an e-mail. You can also find all the products at http://www.pro-tape.com