Re: R positive and negative DVDs

R positive and negative DVDs (February 14, 2009 09:03AM) sharon
What is the difference between R positive and R negative DVDs, and is one format preferred over the other?
Re: R positive and negative DVDs (February 14, 2009 09:27AM) Ken Stone Admin
Hi Sharon,

For maximum compatibility (burning from a Mac) always use DVD - R (DVD minus R). Plus R DVDs are very problematic for us.

Re: R positive and negative DVDs (February 14, 2009 11:42AM) David Harbsmeier


from wikipedia
The DVD+R format is divergent from the DVD-R format. Hybrid drives that can handle both, often labeled "DVD±RW", are very popular since there is not a single standard for recordable DVDs. There are a number of significant technical differences between the "dash" (it's not a minus symbol) and the "plus" format, although most users would not notice the difference. One example is the DVD+R style ADIP (ADdress In Pregroove) system of tracking and speed control being less susceptible to interference and error than the LPP (Land Pre Pit) system used by DVD-R, which makes the ADIP system more accurate at higher speeds. In addition, DVD+R(W) has a more robust error management system than DVD-R(W), allowing for more accurate burning to media independent of the quality of the media. Additional session linking methods are more accurate with DVD+R(W) versus DVD-R(W), resulting in fewer damaged or unusable discs due to buffer under-run and multi-session disks with fewer PI/PO errors.

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