hi everyone… this is my first post at the forums… and i have some trouble.
i have an “Optiarc DVD RW AD-7585H ATA Device” in my “Acer TravelMate 4740 Laptop” and i used to burn dvd’s and cd’s quite flawlessly with it at good speeds (8x for DVD’s). i hav not burned anything since an year and then one day i found that its burning at real slow speed…
first i burned a DVD at 8x on a “Moserbaer DVD-R” 4 files of atleast a GB each… the burning took almost 18 minutes at 8x i used Nero 7 for the burning…
as the burning ended successfully i checked the dvd and it was so slow to open, that explorer hanged and even though after trying 2-3 times after ejecting and rechecking i was unable to open it… (so i threw the DVD :P… Frisbee…)
again i burned another similar DVD-R with simiar files at 4x… it took same amount of time but this time the DVD was usable althoug copying speed as tested was 5MB/s to 8MB/s.
i was completely screwed… so i tested another similar Blank DVD-R with “NERO CD-DVD speed”… in the disc info it shows write speeds as: 2x 4x 6x and 8x (no 16x) but still the burning speed was so slow (near 2-3x i think)
now here comes the tricky part… the same blank dvd showed write speeds of 4x 6x and 8x under disc info when checked on another Burner on a Desktop PC…
Things i’ve already tried…
Checking the PIO or DMA modes… i know the drive is already in Ultra DMA 5 when checked in “IDE ATA/ATAPI controllers” —> “ATA channel 4” (all channels are in Ultra DMA 5)
First these devices are not lised there (since “Intel Rapid Storage Technology” drivers were instaled so i had to remove them to get the ATA channels visible on the list)
so what’s the problem am so clueless…
Laptop:Acer Travelmate 4740
Intel Core i3-370M
Optiarc DVD RW AD-7585H ATA Device
Windows 7 Ultimate 32bit
Nero 7 Essentials