Difference Between BD and DVD

Both BD and DVD have pits and bumps. The difference between the two is that the BD pits and bulges are small and dense. Blue laser is used to read BD. The BD has a helical track extending outward from the center of the disk. Information is stored in these tracks in audio and video format. The blue laser used to read this information has a wavelength of approximately 405 nanometers and must be more accurate than the DVD because the pits and bumps are smaller and closer.

Using a robotic copy machine, you can use the robotic copier to transfer the digital data, audio data, etc. using an empty disc (CD - R when copying CD and DVD - R, Blu - ray - R (BD - R) when copying DVD) Copy audio or video. Built-in CD or DVD burner for home computers. In addition to several Blu-ray discs using slightly different techniques, the blank medium is made from a polycarbonate disc with a reflective surface and a photosensitizing dye. The writing head or laser in the copying machine "burns" the digital information onto the photosensitive layer during reproduction.

Both BD and DVD have pits and bumps. The difference between the two is that the BD pits and bulges are small and dense. Blue laser is used to read BD. The BD has a helical track extending outward from the center of the disk. Information is stored in these tracks in audio and video format. The blue laser used to read this information has a wavelength of approximately 405 nanometers and must be more accurate than the DVD because the pits and bumps are smaller and closer.

Is BD worthy of upgrading from the latest DVD version? For special features: If this is one of your favorite movies, I will say so. HD transmission for movies: Perhaps if you have a smaller screen it is probably not the case. I saw the movie from the 26 inch screen, but in general I can still see the important difference between DVD and Blu-ray. In this case, there are several intermittent scenes with greatly improved resolution, but most other scenes are disappointing. In particular, many wide-angle lenses combining aerial photographs and forest and river scenes are not noticeable. As suggested by comments from other experts, the existence of the original movie may be wrong. I have high expectations and expectations, so this may be another part of the problem