BENQ DW1620
Version: G7M9 27-10-2004
http://support.benq.com/files/storage/Firm...DW1620/B7M9.zipThe firmware is officially on the website.
Release Reasons:
1. Support higher PI/PO/Jitter reading speed with certain software. (DVDInfo Pro v3.32 & CD-DVD Speed v3.42)
2. Support media TE/FE signal detection with BenQ special tool.
3. Modified the writing strategy for TY [TAIYO YUDEN] CD-R media.
4. Fixed the compatibility issue with n-Force IDE driver.
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Test Setup..
(1). PC - Intel 2.6a/ MSI 865pe / 512MB RAM 3200 / 60GB Hardisk Primary Master / 120GB Hardisk Primary Slave
(2). Benq 1620 in Secondary Master
(3). OS - Windows XP SP1
(4). Buring Program - NERO 6.6.0.1
(5). Scanning software - CDSPEED v3.42
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example of BAD DISC !!
Things to look close at: PO Failures, means uncorrectable errors and uncorrectable errors make the disc unreadable. As we could see there are a lot of PO failures on this disc indicating that it's completely unreadable. And both PI Errors and PI Failures are way off as we could see, and thus CD-Speed correctly gives it a quality score of 0. If anyone wonders: The disc is an Infosmart 8x DVD-R using a stolen Taiyo Yuden media code.
To keep it straight:
There should never be PO Failures on a disc, after some testing we have found that for PI Failures a good guideline is that the maximum value should not exceed 10 and for PI Errors it should not exceed 100. Also keep an eye on the quality score reported by CD-Speed, the higher the better .
PI Error/PI Failures the lower the betterJitter cannot more than 15% ...else cannot play in dvdplayerPlayer 8x DVD+R @ 8xThis post has been edited by yangxi: Oct 28 2004, 02:18 AM Attached thumbnail(s)