bumstead

Hi all,

Using Nero to burn a few files to DVD. Chose the verify option, and
Nero tells me that all is fine.

Being paranoid, I ran WinDiff, and it found one of the files on the DVD
couldn't be read. (ie Nero's Verify process lied to me!)

I then tried to open the file using Explorer - and sure enough it was
dead.

Does this happen a lot? (Not so much dead files, but Nero getting it
wrong.)

What does Nero actually do when it's verifying? It takes a
comparatively short time to verify ~4GB of data. (Much less than
WinDiff and other programs that do this sort of verification.)
Regards,
Phil


I have had some emails converstions with Nero and essentially their response is
that because the disk is still in a heated state during the verify process, it
can give erroneous results. Here is the bullshit reply I got back.

"The physical state of the burner changes during burning - both disc and
drive are hot because of the disc speed within the drive. This temperature
changes the the form of the burner as well as the focus of the laser. Nero
verifies the disc right after burning when disc and drive still are warm.
If, because of the temperture difference, the laser was not focussed
correctly, it will be so while verifying, because the temperature within the
drive is still very high.
The errors therefore can only be detected after cooling down to usual
tmperature."

In my last email to NERO I asked WTF was the point of
running a verify if the resuslts are unpredictable. I have not received a response.

My advice is t get a program like CDCHECK and verify you cd/dvd burns. The
program is free.


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tarkus

Why do you think it's a bullshit reply?

Good point, but my guess is they'll say it's better than nothing, that it
does catch some errors.
--
"I only mind the voices in my head when they don't speak English."

Now playing: "Robin Trower - Confessin' Midnight"

oliver costich

And sometimes it does the opposite - verification falils and
everything works.

It's still better than nothing.