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A buffer underrun might not be due to the media that your are writing to. It usually means that the computer could not supply data to the burner fast enough to maintain the burn speed.
Where is the data that you are writing to these discs coming from? If it's a from another DVD then it might be due to a read speed problem, or a dirty/scratched disk that requires retries.
If all of the data is on a local hard drive, then you might try setting the burn speed lower.
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GGD, it's a disc image...
Tried setting the burn speed lower, that seems not to have made much difference. What I don't understand is-- both drives have buffer underrun prevention, why are they giving buffer underruns?
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Sorry to hear that about Verbatim. They had a good rep in comparisons. I guess more and more companies are starting to trade on their good name and reducing quality to improve profit margins.
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Grateful, DVD Media Inspector apparently doesn't work on DVD+R DL ? (It also apparently doesn't work on my model drives... gives an error message when I tried it...)
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Toast 8 gives you the media info-
Go to the Recorder Menu and slect Disk Info with a disk in the drive. You should get the code that identifies the OEM-you can then search for that code on the previously mentioned sites.
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OK, yup, they come up as MKM001 -- but apparently that doesn't mean much, as discs being made in another country are having the same media code.
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I have been using Verbatim for years, burn about 50-80 DL per month, but the past batch really sucks. I am running about 25% failures. Already contacted Verbatim and they replied with instructions for return of the defective product
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As for speed, I feed from an 8 drive SATA RAID 5 array with a hardware controller. Each drive on it's own SATA channel. Buffer Underrun is not an issue