Cd vs dvd vs blu-ray writing
This makes it possible to create Blu-ray Disc products that are backwards compatible with CD and DVD, allowing for a bluestack app player for windows 8.1 seamless transition to the new technology.
The DVD principle changed this as a result of a layering technique, the DVD discs were able to store ocr biology january 2012 mark scheme f214 as much.4 gigabytes on them, allowing games to be stored on the one disc.
Recent development by Pioneer has pushed the storage capacity to 500GB on a single disc by using 20 layers.
The plastic is an injection-molded piece of clear polycarbonate plastic, which then has microscopic bumps that are arranged as a single, continuous, extremely long spiral track of data.Blu-Ray High Density Optical Disc 4 5.DVDs are made with the purpose of holding video files, movies, substantial amount of programs, etc.However, these two words actually mean different things.The two formats however are expected to co-exist for quite some time until hdtvs become more widespread.2, blu-Ray is new optical disc format that is rapidly replacing DVD.
3, storage Capacity, cD 700MB (80Mins dVD.7GB.Sony and Phillips brought forward this new idea in 1994.The idea of the Compact Disc was first brought to light in 1969 by Antonio Rubbiani who had shown that a video disc was possible several years earlier.CDs were invented by Philips and Sony independently, but they did collaborate to create a standard format and related player technology (CD player) in 1982.Though initially CDs were created for storing and playing back sound recording, over the years there have been many different types of CDs produced for different types of work, including CD-Text, CD Graphics, CD-ROM, Video CD, Super Video CD, Photo CD, etc.The bumps/pits on a DVD are much smaller than on CD, allowing the DVD to store more data.CDs and DVDs are made with a different purpose in mind.Blu-Ray (8th November 2012) m/faq bluray_developers.This is due, among other reasons, to the usage of a blue instead of a red laser and improved lens specifications, allowing for a much smaller focus laser beam which enables the recording of much smaller and higher density pits on the disc.