Blu-ray Disc (seminar)

ON

MEDIA TYPE OPTICAL DISC CAPACITY 25 GB(single layer) 50 GB(double layer)

LIGHT 405 nm LASER

READ

Drive Speed 1X 2X 4X

Reading Speed 36 Mb/sec 72 Mb/sec 144 Mb/sec

DEVLOPMENT BLU-RAY DISC ASSOCIATION

LASER

 BLUE

LASER

 405nm WAVELENGTH HARD COATING TECHNOLOGY  DATA CLOSER TO THE SURFACE  VULNERABLE TO SCRATCHES  POLYMER TECHNOLOGY

MATERIAL MECHANIS M INORGANIC RECORDAB MATERIAL

LE INORGANIC REWRITAB PHASE CHANGE LE MATERIAL

LEMINAR PHASE SEPARATION

AMORPHOUS CRYSTAL PHASE TRANSITION

High Definition TV Recording High definition video/AUDIO  Mass Data Storage  Playstation 3 Digital Asset Management and Professional Storage

 Low

Sales

 High Costs  Buggy  SONY’S PALYSTATION 3 CHANGED FATE  HOLLYWOOD’S FEAST

A

B

C

 

A: Americas; East and Southeast Asia; U.S. territories; Bermuda.

B: Africa, Europe, Oceania; Middle East; Kingdom of the Netherlands; British overseas territories, French territories; Greenland. C: Central and South Asia; Mongolia, Russia, and People's Republic of China

 INCLUSION OF JAVA VIRTUAL MACHINE AND NETWORK CONNECTIVITY  UPDATION THROUGH INTERNET  BD BECAME BD-J  NOT FOUND ON DVDs

 SET OF COMPUTER SOFTWARE PROGRAMS & DATA STRUCTURES  USES A VIRTUAL MACHINE  OPERATE ON JAVA BYTECODE  CRUTIAL COMPONENT OF JAVA PLATFORM  INSTANCE OF JAVA RUNTIME ENVIRONMENT

ADVANCED ACCESS CONTROL SYSTEM  SECURITY OF THE HD VIDEO CONTENTS  SAFETY FROM ATTACK ON FORMAT  IMPLEMENTED THROUGH AES ALGORITHM  AES-ADVANCED ENCRYPTION STANDARD

 AES IS A BLOCK CIPHER OR RIJNDAEL  MOST POPULAR ALGORITHM USED IN SYMMETRIC KEY CRYPTOGRAPHY  AES-FAST IN SOFTWARE AND HARDWARE

SUB BYTE STEP bij = S(aij ) NON LINEAR SUBSTITUTION EACH BYTE REPLACED ACCORDING TO LOOK UP TABLE

OPERATES ON ROWS OF STATE EACH ROW IS SHIFTED CYCLICALLY TO LEFT FOR AES FIRST ROW IS LEFT UNCHANGED EACH COLUMN OF THE OUTPUT STATE HAS BYTES FROM EACH COLUMN OF INPUT STATE

EACH COLUMN MULTIPLIED WITH A FIXED POLYNOMIAL C(X)

TOGETHER WITH SHIFT ROWS,MIX COLUMNS CREATE A DIFFUSION IN CIPHER

EACH BYTE OF THE STATE COMBINED WITH SUBKEY USING THE XOR OPERATION

For each round, a sub key is derived from the main key using Rijndael's key schedule

ALLOWS RESTRICTION OF ACCESS TO AND COPYING OF DOWNLOADABLE CONTENT EXECUTES CODE FROM THE ENCRYPTED CONTENT ON THE DEVICE PLAYER BD+ IS BASED ON SPDC SMALL VIRTUAL MACHINE EMBEDDED IN PLAYERS ALLOWS CONTENT PROVIDERS TO INCLUDE ECECUTABLE PROGRAMS ON BLU-RAY DISC

UNIVERSAL DISK FORMAT STORING FILES ON OPTICAL MEDIA SUPPORTS READ ONLY AND WRITABLE MEDIA FILE NAME LENGTH-255 BYTES TYPES OF UDF:PLAIN VAT SPARED

LATEST DEVELOPMENTS QUAD-LAYER 100GB DISCS IN 2007,HITACHI SHOWCASED 100GB BLURAY DISC VARIANTS

MINI BLU-RAY DISC-7.5GB BD5,BD9

 High cost

 Not easily available in market  Regional code



WIKIPEDIA,THE FREE ENCYCLOPEDIA- en.wikipedia.org.

 SEMINAR TOPICS- www.seminartopics.org.  www.pcworld.com  www.homemediamagazine.com  APPLIED CRYPTOGRAPHY-By-Bruce Schneier