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  2. Comparison of popular optical data-storage systems - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_popular...

    DVD-RW represents a DVD "-" disc which can be read or written many times BD-RE represents a Blu-ray disc which can be read or written many times. In addition some of these media support MultiLevel Recording formats, for example dual layer (written as "DL"), and DVD also supports a "RAM" version (similar to RW), although this is not widely used ...

  3. Combo drive - Wikipedia

    en.wikipedia.org/wiki/Combo_drive

    Combo drives are becoming less and less common on new systems, though they do occasionally appear in lieu of CD-only drives on low-end computers and business computers to lower production and sale costs. The cost difference between a combo drive and DVD burner has been steadily declining in recent years, so most new PCs (except for the low-end ...

  4. LPDDR - Wikipedia

    en.wikipedia.org/wiki/LPDDR

    Both LPDDR4 and LPDDR5 allow up to 10 bits of column address, but the names are different. LPDDR4's C0–C9 are renamed B0–B3 and C0–C5. As with LPDDR4, writes must start at a multiple-of-16 address with B0–B3 zero, but reads may request a burst be transferred in a different order by specifying a non-zero value for B3.

  5. Comparison of video container formats - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_video...

    VOB supports interactive menus as multiple files in a specific file structure for encoding DVD content, requiring a companion .ifo file. Matroska has been planning to support interactive menus as part of a draft specification since 2004. [42] Digital 3D is only supported at the container format level in Matroska, [41] MXF [43] and WebM (some ...

  6. Comparison of high-definition optical disc formats - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_high...

    DVD included for comparison Mandatory codecs must be supported by the player. Each disc must use one or more of the mandatory codecs. Ultra HD Blu-ray Blu-ray Disc HD DVD CBHD AVCHD AVCREC DVD; Laser wavelength: 405 nm (blue-violet laser) 405 or 650 nm 650 nm (red laser) Numerical aperture: 0.85 0.65 0.85 or 0.6 0.6 Storage capacity (single side)

  7. DVD+R DL - Wikipedia

    en.wikipedia.org/wiki/DVD+R_DL

    A DVD+R DL disc by Verbatim. DVD+R DL (DL stands for Double Layer) also called DVD+R9, is a derivative of the DVD+R format created by the DVD+RW Alliance. Its use was first demonstrated in October 2003. DVD+R DL discs employ two recordable dye layers, each capable of storing nearly the 4.7 GB capacity of a single-layer disc, almost doubling the ...

  8. Optical storage media writing and reading speed - Wikipedia

    en.wikipedia.org/wiki/Optical_storage_media...

    In the history of optical storage media there have been and there are different optical disc formats with different data writing/reading speeds.. Original CD-ROM drives could read data at about 150 kB/s, 1× constant angular velocity (CAV), [1] the same speed of compact disc players without buffering.

  9. DVD recordable - Wikipedia

    en.wikipedia.org/wiki/DVD_recordable

    DVD±R/W (also written as, DVD±R/RW, DVD±R/±RW, DVD+/-RW, DVD±R(W) and other arbitrary ways) handles all common writable disc types, but not DVD-RAM. [1] A drive that supports writing to all these disc types including DVD-RAM (but not necessarily including cartridges or 8cm diameter discs) is referred to as a "Multi" recorder.