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The current optical disc format for high-definition (HD) video at 2K resolution (for 4K Blu-ray, see Ultra HD Blu-ray). Developed primarily by Sony, Blu-ray discs have the same diameter as DVDs, but the pits are a third the size on tracks packed more tightly together. As a result, movies with 1,080 lines of resolution can be recorded, compared to 480 or 576 for a DVD (U.S. NTSC format is 480 lines, PAL format is 576 lines). Blu-ray players read CDs and DVDs, support navigation via menus programmed in Java and feature advanced audio and video formats (see Java, Dolby Digital, DTS, H.264, VC-1).

Commentary and Extra Content
All players support Profile 1.0. Bonus View (Profile 1.1) requires 256MB of flash memory and uses a second A/V codec for running picture-in-picture commentary. BD-Live (Profile 2) requires 1GB of flash to access content from the Internet such as scenes that were cut, interviews with the director and actor history. See BD-Live.

Blu-ray History
In 2003, the first Blu-ray recorders were sold in Japan, and in 2006, Sony's PlayStation 3 was one of the early products to feature a Blu-ray drive (see PlayStation). For several years, Blu-ray competed with HD DVD for the new high-res standard, but HD DVD was later abandoned (see HD DVD). See HD formats, Blu-ray 3D, DVD and DTV.

FULL-SIZE 120MM DISCS    Record  ---Modes--Layers          GB  Hours  ROM  RE  RDVD (480/576 lines)
  Single (DVD-5)  4.3   2     X   X   X
  Dual   (DVD-9)  7.9   4     X   X   X

  BLU-RAY (1,080 lines)
  Single          25    4.5   X   X   X
  Dual            50    9     X   X   X
  Triple BDXL    100   18         X   X
  Quad BDXL      128   23             X

    ROM = Read Only (pressed movie disc)RE = REwritableR = Recordable (write once)

Blu-ray and More
The award-winning Oppo BDP-103 plays Blu-ray, Blu-ray 3D and DVD movies, numerous video formats from a USB flash drive (orange USB inserted), as well as music from CD, SACD and DVD-Audio discs. "FW Found" means a firmware update is available.

Blu-ray Disc Xtra Large (BDXL)
For permanent archival storage, this Sony optical system records on quad-layer BDXL discs one time only. The plastic demo unit (top) reveals all 12 discs in the 1.5TB cartridge (see table above).
References in periodicals archive ?
While the cost of hybrid disk drives may slightly increase with the addition of OneNAND, any increase will be mitigated by several factors, including lower maintenance costs, 95 percent power savings when the disk is not spinning, faster boot time and substantially increased reliability.
creators of the critically acclaimed and best-selling Myst(R) franchise will launch its final adventure, Myst(R) V: End of Ages, in fall 2005 (PC and Mac(R) hybrid disk format).
The FCIA recently announced support for a new class of hybrid disk drives that combine a Fibre Channel interface with a low-cost-per-gigabyte, high-capacity disk drive mechanism.
HP also announced the availability of the industry's first storage area network (SAN) arrays to integrate an innovative new class of hybrid disk drives called Fibre Attached Technology Adapted.
The panel members will review current approaches to this challenge such as: disk-to-disk replication, hybrid disk and tape appliances, continuous data protection solutions and new caching approaches - technologies taking over the domain once dominated by tape backup and mirroring approaches.
para]]Provides up to 4x factory-equipped storage, hybrid disk drive version delivers significant performance improvement[[/para]]
Some SACD players will automatically switch from the SACD to CD layer on a hybrid disk (such as the original Sony 777 and SCD-1), so if you own one of these two players make certain that your machine did not switch to the CD layer after it found the SACD layer unreadable.
95, as well as a Macintosh/Windows hybrid disk which will run on both platforms.
Another judge noted that the HA 2800's "inline dedupe and hybrid disk, and snapshot and replication make for a comprehensive feature set.
Its ability to manage hybrid disk and memory persistency allows customers to adjust price/performance and hardware needs.
Flash storage solutions vendor Nimble Storage has expanded its hybrid disk and flash storage array line with a new enterprise model plus its first-ever all-flash storage expansion shelves.
The claims are that hybrid disk drives exhibit SSD performance on common computing tasks without sacrificing the capacity of a spinning disk drive.