I am considering purchasing a Panasonic E85 with the intention of writing to DVD's rather than Video cassette. I have videos that I recorded 15 years ago that are seemingly as good/ bad as when I first recorded them so I was concerned about the following two stories. Please explain/ confirm/ deny/ comment. 1. Some DVD home copies become unreadable after as little as a year. 2. Some home written DVD's are unreadable when first played & media is the possible problem.