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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 ?
Similar to its flagship product, HyperCD(R), HyperLOCK's HyperDVD technology merges hybrid DVD technology and encryption and embeds them in the Web.
The Rimage system produces Hybrid DVDs -- a new format that combines photos with a musical soundtrack or video introduction -- plus conventional photo CDs and music CDs from a complete catalog of music on demand.
FirstPerson's proprietary technologies include camera systems, proprietary processing systems and multi-platform viewers that can be used to create enhanced CDs, CD/DVD-ROMs, console videogames and hybrid DVD products that maximize audience participation and build brand awareness.
The hybrid DVD recorder comes with the Nero(R) software suite to use when it is attached to a computer.
But there's still hope--LG is one of the few brave electronics companies pushing on with hybrid DVD players, so you can still watch your HD DVDs while you start your new Blu-ray collection.
The hybrid DVD recorder comes with the Nero software suite to use when it is attached to a computer.
Last week, Pioneer Electronics began selling the Elite DVL-90 - a hybrid DVD, laserdisc and CD player - at Dave's Video in Studio City and Genesis in El Toro.
The division's Consumer Group markets high-definition plasma televisions and monitors, Blu-ray and Hybrid DVD camcorders.