Old 16-11-2004   #401
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Re: CDSpeed v3 Disc Quality Test

Quote:
Originally Posted by mrish
hey everyone

trying some stuff with my new nec 3500ag (2.16) btw

1. the fw was already factory set so should i put herries new one in or wht should i do,
2. my tests are below can someone explain to me y it differs from kprobe and cd speed?
3. could my liteon be shitty? is there anyway i can check my media on my 3500 instead? i read that cd speed doesnt currently support it
4. this cd is for mp3 use only so could these below settings affect my files on it such as bad files bad reading etc?
5. can anyone tell me why the jitters are not displayed on my litey

any input on my scans are welcome my media is 8x im*t*on which shows as ricoh r02
The Nero CD-DVD Speed scan looks pretty good (you can ignore the spikes).
If you set the reading speed to 4x with KProbe as SirQUK suggested you should get a similar graph as in Nero CD-DVD Speed.
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Old 16-11-2004   #402
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Re: CDSpeed v3 Disc Quality Test

Quote:
Originally Posted by muchin
mrish,

As can be inferred from the scanning intervals in the stastics given by Nero CD-DVD Speed, the program reports errors per ECC block in this case. So you ought to use the same parameters in Kprobe in order to get comparable scans.
For LiteOn drives the Disc Quality test collects PI errors for each 8 ECC blocks and PI failures for a single ECC block.
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Old 16-11-2004   #403
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Re: CDSpeed v3 Disc Quality Test

As if you did`nt know Vanguard`s poor quality (That`s write DVD-R 4X)


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So it would`nt burn at 4X. Well i gotta try a lower speed then.

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Ooops! Not even an option......

I can`t really disagree QScan here. This media is by far the worst i ever had

This one`s burned with my retired Nec ND-1300A.

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Totally unreadable after 3500MB. No wonder QScan did`nt recomend this disc at any speed.

As you see it`s fwB7M9, which did`nt report PI failures here, but i think we`ve seen enough....

Any worse?
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Old 16-11-2004   #404
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Re: CDSpeed v3 Disc Quality Test

Hi Erik,

thank you for this great programm. It´s very nice, but I am missing a little thing: The function "Disc Info" does not show the region code of a DVD. I think this could be usefull.

Greetings, Assi.
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Old 16-11-2004   #405
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Re: CDSpeed v3 Disc Quality Test

Quote:
Originally Posted by ErikDeppe
For LiteOn drives the Disc Quality test collects PI errors for each 8 ECC blocks and PI failures for a single ECC block.
Well, I have made a lucky mistake to result in being kindly informed of the exceptions, which I have forgot, for I am used to run Kprobe with Liteon drives. In view of the exceptions, it would be better to state the number of ECC blocks in each sample for each type of errors in the statistics of writing quality test. Would you think so?

When I did some comparison tests using Nero CD-DVD Speed and Kprobe (version 2.40) with Liteon DVD-ROM just now, the average PIF calculated by Nero is about 2 times that by Kprobe, despite that both give about the same number of total PI failures. If you have in advertently write incorrectly one step in the algorithm for Liteon drives, please do not feel bad about it, for nobody is infallible. Also, you may be aware that there is a similar type of mistakes in Plextools 2.17 as well as Kprobe 2.42. Besides, many people excelling in advanced mathematics are not as good at arithmetic; in contrast, I am pretty good at arithmetic, but ignorant of advanced mathematics.
<O</O<O</O

Last edited by muchin; 16-11-2004 at 22:37.
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Old 17-11-2004   #406
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Re: CDSpeed v3 Disc Quality Test

Hi Erik, have a look at this thread. Apparently the Pioneer drives are able to do quality scan. I wonder if this was done via info obtained from Pioneer or if it was via reverse-engineering? Maybe you can ask Pioneer about this and obviously the question is: will we also see this on "CD-DVD Speed"?
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Old 17-11-2004   #407
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Re: CDSpeed v3 Disc Quality Test

Quote:
Originally Posted by muchin
Well, I have made a lucky mistake to result in being kindly informed of the exceptions, which I have forgot, for I am used to run Kprobe with Liteon drives. In view of the exceptions, it would be better to state the number of ECC blocks in each sample for each type of errors in the statistics of writing quality test. Would you think so?

When I did some comparison tests using Nero CD-DVD Speed and Kprobe (version 2.40) with Liteon DVD-ROM just now, the average PIF calculated by Nero is about 2 times that by Kprobe, despite that both give about the same number of total PI failures.
um DVD-ROMs are not accurate to scan with. using a liteon DVD-Writer I get pretty identical scans using kprobe2 and nero cdspeed3 on that burner.
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Old 17-11-2004   #408
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Re: CDSpeed v3 Disc Quality Test

Where can I get a list of the drives that CD-DVD Speed supports?
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Old 17-11-2004   #409
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Re: CDSpeed v3 Disc Quality Test

You will find the supported drive list here.
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Old 17-11-2004   #410
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Re: CDSpeed v3 Disc Quality Test

Hi Erik.

Do you know that CD-DVD Speed can't correctly recognize multisession CDR?
It see only one session. It is don't depend from drive.
See screenshots Nero Disk Info & CD-DVD Speed 3.50.
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Old 17-11-2004   #411
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Re: CDSpeed v3 Disc Quality Test

Quote:
Originally Posted by Jamos
um DVD-ROMs are not accurate to scan with. using a liteon DVD-Writer I get pretty identical scans using kprobe2 and nero cdspeed3 on that burner.
Being music oriented, I have limited experience with DVDRs, though I have read a good number of articles and discussions about them. Similar to what have been observed by many people, my own experience indicates that LiteOn DVD-ROM drives are not suitable for testing C1/C2 errors, presumably a reflection of their superior capabilities in reading low quality CDRs. As to PI/PO error tests, most probably you are aware that different opinions have been expressed. At present I opt for the view that each supported reader, including DVD-ROM drive, is correct, but only in its own right, as has been aptly explained in a very informative summary by Halcyon based on his knowledge and experience. Besides, a DVD-ROM drive is the only device many people have for assessing PI/PO error levels.
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Old 18-11-2004   #412
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Re: CDSpeed v3 Disc Quality Test

Quote:
Originally Posted by muchin
Well, I have made a lucky mistake to result in being kindly informed of the exceptions, which I have forgot, for I am used to run Kprobe with Liteon drives. In view of the exceptions, it would be better to state the number of ECC blocks in each sample for each type of errors in the statistics of writing quality test. Would you think so?
That may be a good idea. Seperate ECC sums are only used with LiteOn drives though.
Quote:
When I did some comparison tests using Nero CD-DVD Speed and Kprobe (version 2.40) with Liteon DVD-ROM just now, the average PIF calculated by Nero is about 2 times that by Kprobe, despite that both give about the same number of total PI failures.
<O</O<O</O
Do you have the results from those tests? (# PI failures and # samples)
I don't think there's a problem with the average calculation with Nero CD-DVD Speed.
But the average values are not very important anyway
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Old 18-11-2004   #413
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Re: CDSpeed v3 Disc Quality Test

Quote:
Originally Posted by GeoN
Hi Erik.

Do you know that CD-DVD Speed can't correctly recognize multisession CDR?
It see only one session. It is don't depend from drive.
See screenshots Nero Disk Info & CD-DVD Speed 3.50.
This is by design
The transfer rate test only reads from the first session.
If you want to test all sessions you can use the ScanDisc function.
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Old 18-11-2004   #414
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Re: CDSpeed v3 Disc Quality Test

Quote:
Originally Posted by johnzap
Hi Erik, have a look at this thread. Apparently the Pioneer drives are able to do quality scan. I wonder if this was done via info obtained from Pioneer or if it was via reverse-engineering? Maybe you can ask Pioneer about this and obviously the question is: will we also see this on "CD-DVD Speed"?
The info did not come from Pioneer.

I will post more info later
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Old 18-11-2004   #415
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Re: CDSpeed v3 Disc Quality Test

Quote:
Originally Posted by ErikDeppe
This is by design
The transfer rate test only reads from the first session.
If you want to test all sessions you can use the ScanDisc function.
What about Disk Quality Test with multisession CDR?
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Old 18-11-2004   #416
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Re: CDSpeed v3 Disc Quality Test

what about creating data discs at different speeds other than max
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Old 18-11-2004   #417
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Re: CDSpeed v3 Disc Quality Test

Quote:
Originally Posted by uknown1234
what about creating data discs at different speeds other than max
File - options - standard tests - write speed.
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Old 18-11-2004   #418
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Re: CDSpeed v3 Disc Quality Test

this might be to much to ask of Erik, but:

I really like the burn speed graph of CDSpeed and I really don't like wasting a disk each time I am using it, hence.... it would be really cool if CDSpeed would accept a Nero image file and use it for the speed test, or if the graph option could be included into Nero.

It's just a wish though and might not be doable ;=)
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Old 19-11-2004   #419
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Re: CDSpeed v3 Disc Quality Test

Quote:
Originally Posted by rdgrimes
File - options - standard tests - write speed.
ah thanks, i thought that was it but was not sure and I didn't want to waste a dvd.
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Old 19-11-2004   #420
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Re: CDSpeed v3 Disc Quality Test

Can anyone else verify if this happens on their system as well or is it just me?
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Old 19-11-2004   #421
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Re: CDSpeed v3 Disc Quality Test

Quote:
Originally Posted by pchilson
Can anyone else verify if this happens on their system as well or is it just me?
I was able to find the problem but unfortunately I don't have a fix yet.
It only happens with DVD-R discs and with certain drives.
But normally this problem should be fixed next week.
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Old 19-11-2004   #422
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Re: CDSpeed v3 Disc Quality Test

Quote:
Originally Posted by ErikDeppe
I was able to find the problem but unfortunately I don't have a fix yet.
It only happens with DVD-R discs and with certain drives.
But normally this problem should be fixed next week.
Erik, thank you for looking into this. Didn't know if it was only me or what!

I can verify that the problem is on:
BenQ 1620 FW v. B7P9
LiteOn 812s FW v. US0Q

The problem is NOT on:
NEC 3500 FW v. 2.18
Plextor PX-712 FW v. 1.05
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Old 20-11-2004   #423
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Re: CDSpeed v3 Disc Quality Test

Nero CD-DVD Speed version 3.55 has been released

<B>Changes</B>
<UL>
<LI>Disc Quality Test: Added support for <B>Asus DVD recorders (Pioneer OEM)</B></LI>
<LI>Fixed incompatibility with PlayStation DVDs</LI>
<LI>Small improvements and bug fixes</LI>
</UL>
Download
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Old 20-11-2004   #424
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Re: CDSpeed v3 Disc Quality Test

Wow.
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Old 20-11-2004   #425
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Re: CDSpeed v3 Disc Quality Test

Already downloaded the new version!

Dunno if Im gonna notice any difference, but why not have the newest version when its free!

But what does this error mean?

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Media: That`s write DVD+R 4X
No reading problems in the standalone dvd player.
I got the same error with Verbatim datalife plus DVD-R (MCC 01) even the disc seemed to be fine.

I dont think the media is the problem so I hope it will be fixed with the new version
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