Blu-ray brings three major improvements over DVD: better image quality, better sound quality, and more special features. All three are made possible by the larger storage capacity of Blu-ray.
Full 1080p high definition - the highest quality picture available for the home
High definition (HD) offers six times the amount of detail compared to standard-definition (SD). DVDs only support SD because they don't have the necessary storage capacity to satisfy the needs of HD. With up to 50GB of storage capacity, Blu-ray enables playback, recording and rewriting of HD in all of the HD resolutions including 1080p.
Many of your customers may have purchased an upconverting DVD player in the hopes of improving the picture quality from their DVDs. It's important to tell them that an upconverted DVD image should not be confused with true high definition. Upconverting DVD players can only "expand" a standard format's native resolution by guessing (interpolating) what that extra resolution would look like. With Blu-ray there is no guessing because it comes much closer to the source's resolution - so your customer's current DVD collection will look better than ever when played in a Blu-ray Disc™ player compared to an upconverting player.