引用:
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作者kyo330
我簡單的說一下
CD-R燒錄片跟CD-RW燒錄片差別在於CD-RW用的染料不同,可以讓你抹掉資料再重寫,價格也比CD-R燒錄片貴一些
DVD燒錄片之所以會有+-的區別是因為製作大廠意見的不同,有人支持+的規格,有的支持-的規格
想更了解請點我 ( http://zh.wikipedia.org/wiki/DVD)前往維基百科
一般來說DVD-R燒錄DVD影片效果比較好,而DVD+R則是燒錄資料比較好,不過我個人無視都用DVD-R 
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沒有什麼DVD-R燒錄影片比較好的證據吧
明明DVD-Video也是資料格式...
根據CD Freaks的技術文章
http://www.cdfreaks.com/reviews/Why...erior-to-DVD-RW
DVD+R優於DVD-R
最重要的是
Another bad side effect of this pre-pits method is that DVD-R(W) mastering is
made more difficult than with DVD+R(W), since a higher precision is required to cut both the grooves and the pre-pits between them. Special dual-beam recorders are usually required for - stamper mastering, although some manufacturers now also use single beam cutting.
Not only are the pre-pits more error prone than phase modulation, but data they carry are also less protected. In one ECC block pre-pits carry 192 bits of information (one pre-pit block). Out of these 192 bits, 48 are not rotected by any error correction mechanism, 24 bits are protected by 24 bits of parity (A parity), and the last 56 bits are also protected by 24 bits of parity (B parity). All in all, this strange heterogeneous structure finally gives a pretty weak protection to the information bits carried by pre-pits.
轉貼的第二段裡面提到DVD-R的1個ECC Block裡面有48bits是完全沒有在ECC的保護之下的
此外有24bits只有A同位法的保護，最後還有56bits只有B同法位的保護
意思就是DVD-R的一個ECC Block裡面有48bits完全沒有ECC保護，有80bits(24 + 56)則是用同位法保護
剩下的才有完全保護.......
所以DVD-R較適合用在有些許錯誤下也沒問題的狀況，
也就是DVD-Video/DVD-Audio...因為有錯誤頂多是看到馬賽克、爆音
純資料則不適合
而DVD+R則是任何狀況下都可以使用...
如果說DVD-R的相容性比較好...這....
http://hardware.earthweb.com/news/article.php/1466521
2002年夏天Intellikey Labs針對1997~2002年夏的100台DVD Player作測試
DVD+R的相容性達90%、DVD+RW為72%
DVD-R為77%、DVD-RW則為66%
這個測試是有導入DVD+R Booktype的技術....
Pioneer看到這個測試報告以後，自己也做了測試....= =
(非第三方的測試....)
DVD+R和DVD-R的相容性為78%、DVD+RW為63%、DVD-RW為58%...