So heres the deal. My drive shows up as Slimtype DVD A DS8A1P in a HP Pavilion dv6629wm part of the dv6000 series. HP support has no solution for me. There are no firmware updates, and firmware that i have found pretty much kills the drive. I have tried several types of media including verbatim. The drive will burn cds dvd+r and reads everything just fine. I also have a Pavilion dv6626us it to has a DVD+DL burner which works. When i take that drive that works and put it in this laptop it still works. This one that doesnt burn DL when swaped will still not burn DL disks. I have cleaned the laser lens properly. I have never been able to burn a DL disk and the computer is about 6 months old. here is a log from imgburn.
I 23:55:07 ImgBurn Version 2.4.2.0 started!
I 23:55:07 Microsoft Windows Vista Ultimate Edition (6.0, Build 6000)
I 23:55:07 Total Physical Memory: 981,312 KB - Available: 440,380 KB
I 23:55:07 Initialising SPTI...
I 23:55:07 Searching for SCSI / ATAPI devices...
I 23:55:07 Found 1 DVD