I bought an Emprex 1004IM 4x DVD Writer just after the 1st of this year. I am a newbie here so don't flame me if I don't exactly do things as they should be. Anyway, the problem I am having is writing to DVD-Rs. I am using DVD Xpress Copy to create backups of my DVDs. I am using Ritek 1x/2x DVD-Rs (RITEKG03). I constantly make coasters with this media when my drive is set to DMA mode. However, when I put the drive in PIO mode I can use this media and I don't create any coasters using the Ritek DVD-Rs (RITEKG03). So I thought that perhaps this drive has a problem with the Ritek media so I bought some cheapo 4x DVD-Rs made by Fornex (FORNEX4X002). Exactly the same results as the Ritek DVD-Rs. Writes good (but slow!) in PIO mode and coasters galore in DMA mode but faster. I then decided to buy some DVD+RW (INFODISCA01) from Maxell. These always work regardless if the drive is in PIO or DMA mode. I then bought someCompUSA brand 2.4X DVD+Rs (OPTODISCOP1) and these work in both PIO and DMA mode. I then decided to buy some Princo 1x/2x DVD-RW (PRINCO) and this works in either mode. HOWEVER, they are useable up to about 5-7 times and then after around the 8th time or so the DVD writer can never write to it again even though programs such as DVDinfo, Roxio Disc Backup can erase/format the media. I do have the latest 048 firmware for the drive.
Here is an update. I moved the drive firmware back to 047 and same results. I also removed the Nvidia IDE driver and replace with the stock Microsoft one in Windows XP. I decided to buy and Emprex 8X Dual Drive (BTC 1008IM) and it has the exact same issue my 1004IM drive has.
Maybe its my machine or BIOS settings. Everything in my BIOS looks normal.
My machine specs are:
AMD Athlon XP 3200+
1 GB DDR 3200
WD 120 GB HDD 7200rpm (master IDE channel 1)
Emprex 1004IM/1008IM (master IDE channel 2)
Biostar Ideq 200N (Nforce2 chipset) Small Form Factor
Logitech Wireless Keyboard and Mouse
Windows XP with latest NForce chipset drivers
Any help/ideas would be appreciated.