How does DVD+R and DVD-R differ?

Discussion in 'DVD Video' started by Gyro Gearloose, Sep 15, 2003.

  1. Greetings to you!

    Can you please tell me what are the differences between DVD+R and DVD-R?
    Which one is better and universally accepted? I will appreciate your
    enlightening me on this.

    I thank you for your time and look forward to hearing from you soon.

    With regards,
    Gyro Gearloose, Sep 15, 2003
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  2. Gyro Gearloose

    TCS Guest

    Do a google search for "dvd+r dvd-r faq"

    The gist I've read is that dvd+r has more capabilities for dvd/rewriteables
    and can use the same format on writeonce disks.
    [4.3.5] DVD+RW and DVD+R

    DVD+RW is an erasable format based on CD-RW technology. It became available in
    late 2001. DVD+RW is supported by Philips, Sony, Hewlett-Packard, Dell, Ricoh,
    Yamaha, and others. It is not supported by the DVD Forum (even though most of
    the DVD+RW companies are members), but the Forum has no power to set standards.
    DVD+RW drives read DVD-ROMs and CDs, and usually read DVD-Rs and DVD-RWs, but
    do not read or write DVD-RAM discs. DVD+RW drives also write CD-Rs and CD-RWs.
    DVD+RW discs, which hold 4.7 billion bytes per side, are readable in many
    existing DVD-Video players and DVD-ROM drives. (They run into the same
    reflectivity and disc format recognition problems as DVD-RW.)

    DVD+RW backers claimed in 1997 that the format would be used only for computer
    data, not home video, but this was apparently a smokescreen intended to placate
    the DVD Forum and competitors. The original 1.0 format, which held 3 billion
    bytes (2.8 gigabytes) per side and was not compatible with any existing players
    and drives, was abandoned in late 1999.

    The DVD+RW format uses phase-change media with a high-frequency wobbled groove
    that allows it to eliminate linking sectors. This, plus the option of no defect
    management, allows DVD+RW discs to be written in a way that is compatible with
    many existing DVD readers. The DVD+RW specification allows for either CLV
    format for sequential video access (read at CAV speeds by the drive) or CAV
    format for random access, but CAV recording is not supported by any current
    hardware. DVD+R discs can only be recorded in CLV mode. Only CLV-formatted
    discs can be read in standard DVD drives and players. DVD+RW media can be
    rewritten about 1,000 times (down from 100,000 times in the original 1.0

    DVD+R is a write-once variation of DVD+RW, which appeared in mid 2002. It's a
    dye-based medium, like DVD-R, so it has similar compatibility as DVD-R.
    Original DVD+RW drives did not fulfill the promise of a simple upgrade to add
    DVD+R writing support, so they have to be replaced with newer models. The
    original Philips DVD+RW video recorders, on the other hand, can be
    customer-upgraded to write +R discs.

    Philips announced a DVD+RW home video recorder for late 2001. The Philips
    recorder uses the DVD-Video format, so discs play in many existing players. HP
    announced a $600 DVD+RW drive (made by Ricoh) and $16 DVD+RW discs for
    September 2001. HP's drive reads DVDs at 8x and CDs at 32x, and writes to
    DVD+RW at 2.4x, CD-R at 12x, and CD-RW at 10x.

    In 2003 DVD+R discs cost around $2 to $6 and DVD+RW discs cost around $5 to
    $10. DVD+RW media is produced by CMC Magnetics, Hewlett-Packard, MCC/Verbatim,
    Memorex, Mitsubishi, Optodisc, Philips, Ricoh, Ritek, and Sony.

    More DVD+RW information is at and The obsolete
    DVD+RW 1.0 format is standardized in ECMA-274.
    TCS, Sep 15, 2003
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  3. Thank you very much. That was a great help!

    Gyro Gearloose, Sep 15, 2003
  4. Gyro Gearloose

    Impmon Guest

    The difference is how they are burned. They are generally readable in
    any DVD-ROM and most DVD players.

    More DVD player works with +R than with -R but IMO -R burns a bit faster
    and blank are available at slightly lower price than +R.

    There are burner that can do both format.
    Impmon, Sep 15, 2003
  5. -R is more compatible..

    1624 machines compatible with DVD-R
    1182 machines compatible with DVD+R
    H E Pennypacker, Sep 15, 2003
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