I’ve just recently started using the ‘create data disc’ feature of Nero CD-DVD Speed in the past week or so, for the purpose of testing overall write speeds, speed dips, etc. I’m having major issues using Nero CD-DVD Speed to burn discs though, issues that don’t exist when I burn discs using programs such as Nero, DVD Decrypter, and ImgBurn. I’ve done about 15 test burns and I’m tired of trying to pinpoint what the issue is and wasting discs in the process, I’m hoping there is some simple answer to my problems.
Here is what is happening: with the two drives I’ve used the ‘create data disc’ function, Benq 822 and Benq 1640, I am getting slower burn speeds with many significant speed dips and lowered burn quality as well. With a program such as ImgBurn, these problems don’t exist. For example, an 8x burn with ‘create data disc’ is typically taking 9-10 minutes. With ImgBurn that same burn will take about 8 minutes, and burn speeds with ImgBurn will maintain 7x-8x burn speeds with 95% of the burn remaining at 8x. In contrast you can see that the speeds fluctuate greatly using Nero CD-DVD Speed, as well as the lower quality in burns. Some discs are affected more than others, but media from TY to Optodisc to AML is affected.
I’ll post some example tests (I’ve never attached an image directly to CD freaks before, hope it works):
1st image -
8x burn on Benq 822 using ImgBurn, burn time about 8:25 :
2nd image -
8x burn on Benq 822 using Nero CD-DVD Speed, burn time 9:50 :
3rd image -
8x burn on 1640 using ImgBurn, burn time about 8 minutes, WOPC on :
4th image -
8x burn on 1640 using CD-DVD Speed, burn time 11.5 minutes, WOPC on :
You can’t see it in the 2nd burn, but in the 4th burn you’ll see the consistant PIFs of 1, this occurs with other media burned using Nero CD-DVD Speed, along with worse burns in general. BTW, I use both my 822 and 1640 to do scans, but they both give nearly identical PI/PIF tests to each other, also at 4x and 8x test speeds, so that is not the reason for any differences.
So WTF is causing Nero CD-DVD Speed to burn in this manner?!? Any ideas? Same problems exist whether the drive is installed internally or externally in a USB enclosure. Drives are set to Ultra DMA mode 2 internally. Burst Rate of 1640 is 23MB/s, 18MB/s with 822. Discs burn ‘normally’ using other programs such as ImgBurn, with the only significant fluctuations in buffer and burn speed being in the first few hundred MBs of the disc before it gets to full 8x burn speed, after that only having minor fluctuations, zero fluctuations with TY media and WOPC off. System is plenty fast - P4 HT, 512MB Ram, several GB of space on HD, HD set to Ultra DMA mode 5, etc. Transfer Rates of discs run smoothly to 16x with the 1640, I’m stumped at the moment…