I'm not concerned with the discussion about DVD players and compatibility, but I was wondering if there is a known QUALITY difference between DVD-R (which I use) and DVD+R? I do use name brand media (Verbatim, Imation, Fuji, etc.) nothing generic, and can report no problems. I use a Sony 710a. I typically watch the local Best Buy, Staples, etc and look for what is on sale. DVD-R always seems to be sold out first. Assuming my DVD player can read the DVD+R, is there a preference with quality in mind between the choices?