Posted by Mike Fields on 12/10/06 17:30

"Citizen Bob" <spam@uce.gov> wrote in message
news:457c1b88.14741265@news-server.houston.rr.com...
> On Sat, 9 Dec 2006 11:31:02 -0800, "Mike Fields"
> <spam_me_not_mr.gadget2@comcastDOTnet> wrote:
>
>>Many people (me included) will drag folders from several places
>>onto the Nero "structure" to burn, so after the fact, nothing would
>>know where to look for the various folder sources.
>
> It is assumed that you would inform Nero of the same source structure
> when you performed a verify-only. You could save the "project" which
> could then be re-invoked for verification.
>
>>On the other hand, you may not need to verify the files as
>>much as scan the disk for read errors. CDSpeed, DVDInfoPro
>>and others will do that for you.
>
> CDSpeed writes its own data and then verifies it. It does not verify a
> different source.
>
>>if the data being fed to the burner was bad,
>
> How can the data being fed to the burner be "bad"? If data is fed and
> it is burned then it should verify. If it doesn't then it's not the
> data that is bad.
>


First off, CDSpeed DOES include a scan disk option which is
what I was talking about where you scan for read errors that
does NOT require it to write to the disk at all. From the
CDSpeed latest release page: http://www.cdspeed2000.com/
a.. Added Advanced Disc Quality test for certain BenQ drives
Following parameters are measured:
CD: E11,E21,E31,E12,E22,E32,BLER,Jitter
DVD: 1-5 PIE,PIE,PIF,POE,POF,Jitter

b.. Disc Quality test:
a.. Jitter can be reported with recent LiteOn drives
b.. Added CLV and P-CAV settings for BenQ drives (CD scanning)
c.. Added Advanced options button
c.. Replaced 'Write and Verify' option by 'Streaming' option
d.. Bitsetting: improved support for NEC drives
e.. Small improvements and bug fixes
I have used it quite often to scan a disk and see how it reads and
it works just fine from a DVD-ROM drive that is read only.

As far as data being "bad" if you have a cabling problem to the
drive, you can get read/write errors where the data getting to the
drive is corrupted (but the drive would not know that and would
write the data to the sector and the CRC so it would look valid
to something scanning the disk for read errors). The most common
error you see from CD/DVD media is read problems where the
data read and the CRC do not match. For those errors, you don't
need to know what the data was that was written, you only need
to know you can't read correctly what is there.

mikey

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