[ErikDeppe]

Originally Posted by herske

So i guess there's no future chance to support other LG dvd drives for error scanning?

Certain manufacturers have asked to block their drives with the Disc Quality test because they don't think their drives can report the errors accurately or because the errors don't compare well with other drives.
But other than that they really don't have anything against PI/PO scanning.

[ErikDeppe]

Originally Posted by Sen

Okie, this version will definitely be slower. The whole process should start when you select the nero image file not when you click on create data disc.

You are right. I will correct that in the next version.

[ErikDeppe]

Originally Posted by Wesociety

Awesome! Any chance that you will also add support for .ISO image files ?

Maybe in a future version

[ErikDeppe]

Originally Posted by bugmenot2

Does CDSPeed 3.61 support Disc Quality Scan on Pioneer drives? I see a post with a scan apparently from a 107D. I have 105, 107, and 108 drives and the start button remains grayed out on all of them.

The 108 is on the primary of a motherboard IDE controller with an AOpen 1648/AAP on the secondary which does quality scans OK. The 107 is on a PCI IDE controller and the 105 in a different machine.

If it is supposed to work, any suggestions on what I should try?

Pioneer drives are currently blocked at Pioneer's request.
However if you send me a message I'll tell you how to enable support for Pioneer drives.

[ErikDeppe]

Originally Posted by insaneoctane

Can anyone comment on the reasoning behind offering 12x and 16x speeds on the BenQ? I've noticed I get VERY different results than at 8x. If 8x tells me I have a very good burn and 16x tells me I have a very bad burn, what information do I now have?

The recommended scanning speed for recordable DVDs with BenQ 16x drives is 8x.
12x and 16x settings were added for scanning pressed DVDs.

Originally Posted by insaneoctane

Also, Erik, why does the 12x and 16x speeds cause the BenQ to slow/stop every 250MB or so? It seems like it causes a disturbance in the results following the slowdown and it wastes time...

30 seconds after starting the test the drive will spin down and CD-DVD Speed has to spin up the drive again.
Normally this should only happen once but for some reason this happens every 30 seconds under some circumstances (for example when scanning at 16x).
I will try to sort this out with BenQ.

[ErikDeppe]

Originally Posted by Sapa

Transfer rate on Benq depending on drives the disk was burnt on ?

So far (3 attemps), I could not get the Benq 1620 B7T9 to do a transfer rate test to 16X even though the quality scan readily goes up to 16X. This is with a disk burnt in the Benq.

On the contrary, if I scan a disk written on a NEC 2500A^2510A 2.F8, then the transfer rate test will go to 16X

Attached are
- first a transfer rate test with a TY G02 biurnt at 12X. Speed is 8X
- second a TY G01 (Verbatim Pastel) burnt 4X on the Nec 2500. Speed is 16X

It seems like the software recognizes by which burner the disk was burnt. Quality score range from 97 to 99 so I think this is not an issue but something in relation with the firmware/software discriminating the origin of the burn.

Erik, could you shed some light on this one ?

That's weird. Normally the drive should slow down with all recordable or dual layer DVDs.
I ran some tests but I was unable to run the transfer rate test at 16x with DVD-Rs burned by various drives.

[ErikDeppe]

Originally Posted by SirQUK

Interesting Sappa - Does this mean we could expect 16x transfer for a lot of Single layer media on the BenQ 1620 soon erik?

I've tried a few things but so far the drive always slows down as soon as it's trying to read user data (ie. no error data) from a recordable disc.

[SirQUK]

Cheers for the response Erik.

[Inertia]

Originally Posted by Sapa

Transfer rate on Benq depending on drives the disk was burnt on ?

So far (3 attemps), I could not get the Benq 1620 B7T9 to do a transfer rate test to 16X even though the quality scan readily goes up to 16X. This is with a disk burnt in the Benq.

On the contrary, if I scan a disk written on a NEC 2500A^2510A 2.F8, then the transfer rate test will go to 16X

Attached are
- first a transfer rate test with a TY G02 biurnt at 12X. Speed is 8X
- second a TY G01 (Verbatim Pastel) burnt 4X on the Nec 2500. Speed is 16X

It seems like the software recognizes by which burner the disk was burnt. Quality score range from 97 to 99 so I think this is not an issue but something in relation with the firmware/software discriminating the origin of the burn.

Erik, could you shed some light on this one ?

Originally Posted by ErikDeppe

That's weird. Normally the drive should slow down with all recordable or dual layer DVDs.
I ran some tests but I was unable to run the transfer rate test at 16x with DVD-Rs burned by various drives.

Erik, Sapa raised this 16x speed occurence question starting at post #4 in the thread at Transfer rate test - normal?.

I proved to my satisfaction that this 16x reading on the BenQ 1620 of recordable discs can occur with CD Speed if media such as MXL RG02 is written with a NEC 2500 or 3500 and the media MID code is not readable by CD Speed (and sometimes other programs as well). At first I was not able to duplicate this occurrence with TY G01, but since I have noticed that this media (burned on NEC) might occasionally have an unreadable MID in CD Speed. After ejecting and reinserting the disc the MID might again be readable on the TY G01. The MXL RG02 burned by the NEC drives consistently failed to return a MID code in CD Speed, on all the of the earlier and latest burns that I have checked.

The absence of a readable MID code is responsible for this 16x reading capability.

[Inertia]

Erik Deppe,

There are some interesting questions raised in the discussions at Re: Help understanding CD/DVD Speed's "Score" .

If you have time to peruse posts #8, 11, 15, & 20 in this thread and offer any clarifying comments, it would be very much appreciated.

Thanks for continuing the great work with your outstanding utilities and helpful information over the years.

[muchin]

Originally Posted by ErikDeppe

Certain manufacturers have asked to block their drives with the Disc Quality test because they don't think their drives can report the errors accurately or because the errors don't compare well with other drives.
But other than that they really don't have anything against PI/PO scanning.

Erik,

To my knowledge, several people have reported quality scores of 95-99 by various Pioneer drives over the Internet, so I hope you will persuade Pioneer to end the block.

[ala42]

Erik,
I played around with the Disc Quality Test to check my new Benq 1620 burner. Especially I liked the create data disk from nero image feature .
While working with your great program I found some points which you might consider to improve, so here is my wishlist:

- After creating the data image on the Benq 1620 firmware B7T9, the tray has to be opened and closed for the Disc Quality Test to read the correct disk size. Without this trick it would scan 4482 MB, ignoring the real disk size.

- When saving .png images the images are not stored with maximum compression level. Using IrfanView I could reduce the size from 30-32 KB to 16-19 KB by simply loading and saving the images. This reduction would be nice to have in the longer test threads for faster loading.

- You did add the very nice feature to display the write speed in the test graph. It would be fine also to see the burning time and the selected write speed. These values could be displayed in the 'recording with burner ...' line.

- I had the nero images and the test results stored on different partitions. So each time when I had to select the next nero image file I had to browse the complete directory tree up and down again to reach the other directory. It would be fine if the nero image select file requester did remember this directory independently from the other file requesters. As a workaround I used links to the other directory in both directories.

- For privacy reasons an option to disable the DVD label in the Quality Test window and image filename in the create data disk window would be fine.

[Kenshin]

Originally Posted by ErikDeppe

Maybe in a future version

ISO burning would be great. What about a folder instead of an image file?

[dasein]

Hello,

I'm assuming that my Toshiba sd-r5372 does not scan because it is blocked per Toshiba's request... does anyone know for sure? i'm happy with the drive and would love to post some 5x DL scans, but can't get them, and i don't currently have another burner or rom that will work...

[s_reynisson]

(Hope this is the right place to post )
How can I enable the Disc Quality Test for the NEC3500AG? I'm using version 3.61 and I also tested an older version which was also with a grayed out start button. I see these tests posted all the time in the NEC forum and would very much like to compare two diffrent DVD's I have, a leading brand vs a no-name. Is there a how-to on this? TIA!

[beach-hobo]

The NEC drives don't support scanning !!!!!

[s_reynisson]

Ok, so I'm just eating to much of those mushrooms I found the other day, the NEC forum must be a trick on my eyes!
Is there some other test I can do to compare diffrent DVD media on the same writer?

[litesout]

First posting for me. This is a great board but sooooooooo much to learn! I have an NEC 3500 and loaded latest Nero CD Speed following directions at beginning of thread. I cannot do a "Disc Quality Test" as the start button doesn't highlight. What am I doing wrong?

[litesout]

DISREGARD .... I see a couple posts up my question is answered - NEC not supported.

[ala42]

Welcome . You did not select the right source drive or you inserted an empty disk.

[s_reynisson]

litesout: See the reply I got in the NEC forum, you can at least run one reccomended test

Originally Posted by litesout

DISREGARD .... I see a couple posts up my question is answered - NEC not supported.

[maninthebox]

I'm not sure if this has been noted before or not (I read through the first few pages of this post and didn't see it), but how long should it take to run a scan? I just got a new Benq1620 and it seems to take forever to run a scan on a disc.

[GeoN]

Erik,

What is denominator for Avg PI/PIF calculation in "Disk Quality Test"?
Total PI/X = Avg PI, where X=?

[socrates007]

Originally Posted by maninthebox

I'm not sure if this has been noted before or not (I read through the first few pages of this post and didn't see it), but how long should it take to run a scan? I just got a new Benq1620 and it seems to take forever to run a scan on a disc.

What firmware is your drive using? Also, you are using the latest version of Nero CD-DVD Speed which currently is v3.61?

Upgrade your firmware to B7P9 or newer for a retail version DW1620 drive, or to G7P9 for an OEM version drive. Then, download the latest Nero CD-DVD Speed (v3.61) from here: http://www.cdspeed2000.com

That should take care of it. Now, a scan done at 8x speed should take you about nine minutes to complete.

[insaneoctane]

Originally Posted by GeoN

Erik,

What is denominator for Avg PI/PIF calculation in "Disk Quality Test"?
Total PI/X = Avg PI, where X=?

Currrently, Erik is not using PI in his Disc Quality measurement, only PIF. He has indicated that he will CONSIDER including PIE values in the calculation sometime in the future.