Monday, August 31, 2015
Search
  
Submit your own News for
inclusion in our Site.
Click here...
Breaking News
NVIDIA GRID 2.0 Launches
New LG Luxurious Urbane Smartwatch To Appear at IFA
Alienware Brings Liquid Cooling and Dynamic Overclocking to Holiday Lineup
Razer Launches Wildcat Xbox One Controller And Upgraded Nabu Smartband
Workstation Market Shippments Rebound In Q2
Google Will Help You Find Your Plumber
IFA 2015: What We Know So Far
Acer Liquid Z410 And Liquid Jade Z Phones Released
Active Discussions
How to back up a PS2 DL game
Copy a protected DVD?
roxio issues with xp pro
How to burn a backup copy of The Frozen Throne
Help make DVDInfoPro better with dvdinfomantis!!!
Copied dvd's say blank in computer only
menu making
Optiarc AD-7260S review
 Home > News > Optical Storage > The Bas...
Last 7 Days News : SU MO TU WE TH FR SA All News

Friday, May 09, 2008
The Basics of Blu-ray Production Workflow


With Blu-ray being the format of choice for Hollywood studios, replicators need to make significant changes to their disc manufacturing processes, which means new investments.

Compared to the DVD production, the Blu-ray production includes a different and more complicated authoring process, changes in the ways the authored content is transferred to the mastering equipment as well as new encryption and certification procedures.

Authoring typically involves use of special pre-mastering tools which will output the HDMV (video content) enhanced with the BD-J features.

The encryption process for the Blu-ray format is more involved than CSS on DVD. This has to do with the Blu-ray's copy protection schemes that use the mandatory AACS and ROM Mark items as well as the optional BD+.

The BD+ code is inserted during the authoring process. AACS requires an investment in the AACS Licensing as well as in purchasing media key blocks (MKB) in order to be used in the pre-mastering stage. The pre-mastering tools uses the MKBs to encrypt the content and outputs a content certificate, which should be sent to the AACS LA for signing and approval. AACS LA returns the certificate, which the pre-master tool needs to insert back in the Blu-ray image prior to mastering. The procedure may take more than two days - a timeframe in which the image cannot be passed for mastering.

As soon as the image is ready, the stamper should be created. Provided that the size of the produced image is much bigger than in case of DVD, the network infrastructure used for the transfer of it to the LBR should be able to handle it adequately in terms of bandwidth, servers and switches. Additional investment may be also required in this stage, either in new mastering server drives or in a Blu-ray LBR, which is the "recording" device that creates the first master of the movie/video. In order to include the BD ROM Mark in the release, this should be added prior to LBR recording. ROM Mark is a physical security item on the disc itself. It is created and added using the ROM Mark inserter. The ROM Mark inserter receives keys from the AACS process and uses those keys in creating a separate physical mark on the master. Inserters can be licensed by Sony and Philips.

Once the master is ready, it can be passed for replication. The replication equipment is possibly the most significant investment a replicator should make in order to have high quality replicas (BD-ROMs). Both in-line and off-line inspection is essential for quality results. Physical, electrical and logical data testing equipment should be also upgraded for Blu-ray.

It is obvious that the replication Blu-ray is much more complicated, time consuming as well as more expensive than the CD and DVD in the past. Although the currently available hardware and software tools may contribute in a more straight-forward procedure, licensing and content protection issues are still around and could make replication more complicated. Significant investments are also required for Blu-ray replication. The Blu-ray Disc Association believes that the upturn in the Blu-ray market depends on the BD-ROM replicators and their decision to embrace the Blu-ray format.


Previous
Next
LG Display Develops Next Generation TFT Printing Technology        All News        Mozilla shipped worm with Firefox add-on
Asus DRW-20B1S/B1ST X-Multi Drive Optimizes Disc Burning     Optical Storage News      Sony and BenQ to launch 22x DVD burners in 3Q08

Get RSS feed Easy Print E-Mail this Message

Related News
Licensing Ultra HD Blu-ray Format To Start This Month
Blu-ray Disc Association Completes Ultra HD Blu-ray Specification
DIGISTOR Releases New Professional Grade Blu-ray Recordable Media
Blu-ray Players Could Install Malware
4K Blu-ray Gets a Name: Ultra HD Blu-ray
Sony Unveils New Line of Blu-ray Disc Players
Panasonic Showcases Next Generation Blu-ray Disc Player at CES 2015
Blu-ray Movie Discs Used As Templates For Improving Solar Cell Performance
Pioneer Introduces New High-end Blu-ray Players At CEDIA
Blu-ray Discs For 4K Content And 4K Players Coming Next Year
New BD-DSD Blu-ray Disc Standard Allows Storing 200GB Of Data Per Disc
Optical Disc Sales Down

Most Popular News
 
Home | News | All News | Reviews | Articles | Guides | Download | Expert Area | Forum | Site Info
Site best viewed at 1024x768+ - CDRINFO.COM 1998-2015 - All rights reserved -
Privacy policy - Contact Us .