五、tnt4大大引述CDRLabs網友Halc的說法
－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－
原始網頁：
http://www.cdrlabs.com/phpBB/viewto...13405&start=100
I got my c't 21/2004 issue as well. Some tidbits:
BURNERS
+ The best DVD+R 16x / DVD+R DL burner was not the inventors of the plus format, but Pioneer! It was the only drive to score usable burns on all 16 and DL + media. The trick? It burned 2 of the 3 media at 4x. Still, if one considers the average user, that's what the drive SHOULD do: burn at the highest SAFE setting and not with the higest settings that produces useless burns.
+ Nec is a very good -R burner, no doubt about that. It only stumbles by trying to burn 8x DVD-R MCC 02RG20/Taiwan at 12x. It's indirect lower level measures are also consistently among the best for -R media. On +R media it is so good, it hurts (burns at 8x). Only fails by trying to burn 8x DVD+R TY T02 at 16x and trying to burn MCC DL media at 4x. If those results are discarded, it's so much better burner in total than any of the others (IMHO).
+ LG is the leasty noisy burner/reader of them all. Not surprisinginly, LiteOn burner is subjectively more than twice as loud (something which is a proud tradition for LiteOn).
+ For DVD playback Nec is clearly the most silent (dvd at 1x). Pioneer is close second, but others come far behind.
- LG, BenQ and Pioneer are not very good at +R 8x media, because they try to burn them at 12x or faster, resulting in really unhealthy looking measurements from the discs. Probably they are much better at 8x, but 12x surely wasn't usable with those firmwares tested.
- Both Philips and BenQ fail on Philips 16x DVD+R (burned at 16x). I find that quite amusing
- LiteOn based burners fail on so many burns/media it is not even funny anymore. They really need to start getting their act together. Either they should delay their launches 6 months and ship with actually working firmware, or then just manufacture better hardware.
= If I would buy a single burner based on that test, it would again be Nec 3500. While LG, Pioneer and BenQ look promising, they are trying to push the limits by burning too fast for their own good. For average users (who will burn at max speed without thinking) they are not good choices. LiteOn I wouldn't recommend to anyone. People should just stop buying their crap and they would be forced to come out with a burner that just works. Now their burners are interesting activity generators (patch this, patch that, hack this, hack that, try this disc, don't try that, etc. ad nauseum)
MEDIA
+ Looks like MCC DL media was some kind of test media for DL burning for most manufacturers. It's results are so consistently good across the board.
- With three total failures (not even CATS could read the burns) and other burns being below spec of marginally usable, I consider Ritek DL media to be pretty much useless with those firmware revisions tested.
- Not a single 8x -R or +R media is ready to be overspeed burned succesfully on all drives to 12x or 16x. Some drives succesfully overspeed burn some media, but none of the media is overspeed burned succesfully on all the drives. Neither is none of the drives able to succesfully overspeed burn all the media. In short, overspeed burning is really only for thrill seekers, who don't give a toss about burn quality. IMHO.
SUMMARY
It was interesting to see that the results of firmware are so important on burn quality. Much more so at 16x and 8x than at 4x/2x.
Also, DL at 2.4x is usable with MCC media. This was quite a surprise to me. I was really expecting mediocre results with most. The scans look actually almost good (not superior though).
All in all, a very informative test again. I hope c't will continue to investigate burn quality in the future as well.
中譯：
我也得到我的c't 21/2004 所發佈的結果。提供一些報告訊息︰
燒錄機
+ 最好的DVD+R 16x / DVD+R DL 不是plus陣營的開發者，而是pioneer的 + ！這是在全部16 和DL + 光碟片上贏得可用的燒錄之中，是唯一的燒錄機。這個是研發廠商的計謀嗎？它在4x 能燒錄三種煤介(應指＋、－、ＤＬ)，然而如果開發者考慮平均用戶的話，那是光碟機廠商應該要做到的(用SHOULD...表示作者蠻激動的)：燒錄在高水準的安全設定以及不要跟消費者討價還價地產生沒有價值的燒錄片。
+ NEC是非常好的 -R燒錄器，沒有任何的懷疑。它只是嘗試時栽在8X DVD-R三菱 02RG20/台灣製(於)12X的表現。它(NEC 3500A)具備更低的水準措施(指PI的控制程度)在最好的-R的光碟片中間是也一貫是間接的。關於+R光碟片的表現是如此的良好，它栽給在8X燒錄的表現(CD-R實驗室作者表示8X燒錄採用Z-CLV)。它僅有輸在燒錄8X DVD+R TY T02染料空片於16X燒錄以及嘗試燒錄三菱DL空片在4X的表現。(3500A)跟其他燒錄器相比較起來，它仍然算是比較好的燒錄器。
+ LG是在燒錄器中最安靜的，並不會讓人感到意外。LiteOn燒錄器在主觀上會比它具備大兩倍以上的聲音(這些觀點算是來自於LiteOn驕傲的傳統)。
+ 在於DVD撥放方面 NEC顯然是最安靜的(在1X的DVD時)。PIONEER以微小的差距居於第二，但是其他的的燒錄機就差很多了...
- LG、BENQ與PIONEER非常不擅長 +R 8X燒錄片，因為它們致力嘗試於12X或更快的速度去燒錄那些光碟片，導致實際上測量(PI值)這些燒錄片時，看起來都確實是不良品的觀感。或許它們非常擅長8x；但是在12x時無疑地肯定那些軔體不可以用來測試(NERO CD-DVD SPEED)。
- 菲利浦和BenQ在菲利浦16x DVD+R(在16x燒錄表現上)完全失敗。 我發現那十分有趣
- LiteOn的基礎燒錄表現，在這些燒錄/光碟片測試平台上算是失敗的，這不再是笑話。他們(LiteOn的研發群)真的需要開始集中心思，他們應該要延遲6個月後再推出他們的產品，或者是正式製造時推出比較好的軔體。
= 如果我能夠再買一次燒錄器來參與試驗，它還是NEC 3500A。當LG，PIONEER和BenQ 看起來有希望時，他們試圖透過對於他們自己的利益來說，太快地推出燒錄器。對一般用戶(將以最大的速度燒錄的觀點來思考)來說，它們並不是好的選擇。我將不向任何人推薦使用LiteOn。人們將停止買他們的垃圾，他們將被迫公佈只工作的一個燒錄機。現下他們的燒錄機是有趣的活動發電機(修補這，修補那，破解這，破解那，試試這個光碟， 不要試驗那，令人作噁)
光碟片
+ 看起來像MMC(三菱)的DL光碟片，有點兒像是大部分DL燒錄機採用的燒錄片。它們的表現結果大致上來說都是表現良好。
- 由於三種方面的徹底失效(連CAT這種專業燒錄片都無法讀取判讀資料)以及其他燒錄形成結果水準在可堪用的邊緣，我認為Ritek的DL 燒錄片用那些個軔體作測試也沒有辦法作到良好修正。
- 沒有一種單面單層的8X -R或 +R燒錄片是可以準備好參與在所有燒錄機裏用12X或16X超速燒錄成功的。有些燒錄機可以成功的超速燒錄一些燒錄片，但並非是說在所有的燒錄機上都可以使該光碟片能夠超速燒錄成功的。也不是說所有的燒錄片都可以在該燒錄機裏成功的超速燒錄。簡短的說，超速燒錄要不是實際上能夠(讓燒錄機能)激動搜尋的話，誰都不願意得到翻來覆去的燒錄品質。這是我個人謙遜的意見(IMHO=In My Humble Opinion)。
摘要
看見軔體的因素在於燒錄品質方面表現是十分有趣的，在16x與8x跟4x/2x的燒錄結果的眼光上來看。
此外，DL片在2.4X上能用的僅是三菱的空片。這對我而言來說是相當徹底的驚奇。我真的很期待能夠看到最普通的結果。在(CAT的)掃描結果看起來實際上幾乎可以說是好的(儘管來說是不優良的)。
總而言之，再一次的報告測試結果，使得這次的是非常具有情報性。我由衷的希望C'T在未來也還能夠繼續去研究燒錄品質的試驗。
----------------------------------------------------------------
CAT是專業的燒錄測試用機，一台聽說要上百萬元新台幣，主要是各大光碟廠測試光碟片之母片品質之用...
在賴以立老師的網站有提到CAT....
http://www.lairy.com/badcdr.htm
附註：在CD-DVDs.裏找到的對岸學術文章，值得一看：(簡體)
也是DVD光碟的測試文章
http://www.cdbest.net/2003/ReadNews.asp?NewsID=1651
－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－
六、其他
－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－
天昏地暗大大對於PI/PO的解釋：
http://www.pcdvd.com.tw/showthread.php?threadid=293555
starless大大所發表的文章：
澄清：Kprobe的PO值並非POF！！
http://www.pcdvd.com.tw/showthread....threadid=352817
如何看待Liteon DVD-ROM所讀出的PI/PO數據
http://www.pcdvd.com.tw/showthread....threadid=353202
－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－
就 這樣