right from the horses mouth:
Over Speed Writing
Storage > FAQ DVDÂ±R/RW > DW1600 Series >
Scope This document is intended to discuss the possibility of over speed writing of BenQ DVDRW 1600 series.
Introduction As a leader in the DVD technology arena, BenQ is
committed to delivering a BenQ DW1600 DVD Re-Writer, which is designed for customers in search of fastest possible DVD recording speed. Apart from the "Write Right Technologies", an over-speed writing is tested and released as a reference of user , when there is not enough 16x DVD+R media available, and there is possibility that user will test as well. Under certain conditions, a reference test has been conducted to see the performance of 16x/12x writing speed with 8x DVD+R
media on BenQ DVD writers.
In order to show the real writing speed for each media, CD-DVD Speed will be used for such testing. The PI, PO & Jitter values of each burnt media will also be measured by it after real writing. It aims to show the writing quality under 12x or 16x writing speed. There are 10 brands of DVD+R media (see list below) will be tested, and which are recommended to write as 12x or 16x speed by BenQ DW1600 DVD Re-Writer.
The test platforms is listed below as Fig 1
Operation System Windows XP Professional
CPU Level Intel Celeron 2.40GHz
Drive Inquiry String BENQ DVD DL DW1600
CD-DVD Speed v3.03
Fig 1 - Testing platform of Over Writing
Media Test List
The test media is listed below as Fig 2
No. DVD+R Media Brand ID Claim Speed Possible Speed by BenQ DW1600 - B5C9*
1 Philips C16 16x 16x
2 SONY D11 8x 16x
3 TAIYO YUDEN T02 8x 16x
4 LeadData S03 8x 16x
5 TDK 002 8x 16x
6 Philips C08 8x 12x
7 Maxell R02 8x 12x
8 BeAll P80 8x 12x
9 Plasmon C01 8x 12x
10 RicohJPN R02 8x 12x
Fig 2 - Media test and recommended list for Over Speed Writing.
* This table is based on f / w B5C9,
* Good disc quality is recommended to test with better performance. Worse disc quality may result in un-predictable problem (e.g disc broken or unreadable disc) which BenQ will not be responsible for.
See in Fig-3. According to the test results below shown Fig 3, it takes approximately 6 minutes to write a 4.3GB data into a DVD+R disc with 16x writing speed as expected. The total writing time is within 7 minutes with 12x writing speed. Furthermore, the measurement results by CD-DVD Speed v3.03 indicated that the writing quality (PI, PO & Jitter) is good of each burnt disc when written at 12x or 16x speed.
No. DVD+R Media Brand Writing Speed Writing Time Quality Score PI PO Jitter Value
1 Philips (C16) 16x 16x 6:04 100 1.04 0 8.62 wow 100 qual
2 SONY (D11) 8x 16x 6:06 95 9.70 0 10.57 i use these qual 95-98
3 TAIYO YUDEN (T02) 8x 16x 6:05 91 4.60 0 8.96 what happened 91qual
4 LeadData (S03) 8x 16x 6:17 97 7.19 0 10.71
5 TDK (002) 8x 16x 6:05 98 2.34 0 9.69 great qual 98
6 Philips (C08) 8x 12x 6:37 98 1.51 0 8.68
7 Maxell (R02) 8x 12x 6:39 99 1.46 0 8.29
8 BeAll (P80) 8x 12x 6:43 96 6.52 0 10.48
9 Plasmon (C01) 8x 12x 6:52 97 5.90 0 10.34
10 RicohJPN (R02) 8x 12x 6:41 97 1.54 0 9.18
Fig 3 - Test result of the over speed writing on DW1600
The major concerns of the over speed writing is the quality. It is the major target to achieving both performance and quality.
The test result shows the possibility of over speed writing with BenQ DVD writers DW1600. Under certain conditions - Good platforms, good media quality-writing at higher speed is possible. Once quality of the media is not stable, it may result in un-predictable problem , such as fail writing, worse quality or in worst case, disc broken, since the 8x media is not designed for usage of high speed.
The test is a reference for user who intend to test the devices. BenQ do not encourage the usage of over speed writing in normal situation. More 8x DVD+R media will be tested for over-speed writing for a better reference.
BenQ America Corp.
Main (949) 255-9500
Direct (949) 255-9569
Fax (949) 623-0880
Irvine, CA 92618, USA
ps they told me today that benQ loves fuji dvd-r by the way i use sony dvd-r