Weird burn speed issue with dual layer media

[Sigma]

Hi,

 

I've been using ImgBurn to burn 360 backups. I'm using an Optiarc AD-7200S burner with 1.09 firmware installed. I know there's a newer version than that, but I've been waiting on a Dee/Liggy modified version before updating. The discs I'm using are Verbatim MKM-003-000 (made in Singapore), rated at 8X.

 

This is what happens when I try and burn at 8X: -

 

1. The speed seems to go in steps in a symmetrical pattern.

 

 

2. The second layer of the disc has a far higher number of PI errors and PI failures than the first.

 

 

ImgBurn log: -

 

; //****************************************\\

; ImgBurn Version 2.4.2.0 - Log

; Saturday, 07 March 2009, 21:04:29

; \\****************************************//

;

;

I 20:41:17 ImgBurn Version 2.4.2.0 started!

I 20:41:17 Microsoft Windows XP Professional (5.1, Build 2600 : Service Pack 3)

I 20:41:17 Total Physical Memory: 3,143,784 KB - Available: 2,451,928 KB

I 20:41:17 Initialising SPTI...

I 20:41:17 Searching for SCSI / ATAPI devices...

I 20:41:17 Found 1 DVD

Edited March 7, 2009 by Sigma

[LIGHTNING UK!]

What does the PIPO graph look like if you scan at 4x?

 

Also, switch to 'Block' rather than 'Line' for 'Show PIE' and 'Show PIF'.

 

Have you tried burning at the other 'Supported' write speeds?

[Sigma]

Thanks for the reply, Lightning.

 

What does the PIPO graph look like if you scan at 4x?

Here's a scan of the same disc at 4X: -

 

 

Better results at that speed, but still a lot more errors on layer 2.

 

Have you tried burning at the other 'Supported' write speeds?

Yeah, I've tried 4X and 6X. Both had marginally worse error rates for the first layer, and about the same for the second.

 

I've tried scanning a couple of my old MKM-001 burns in case it's an issue with the 003 discs because I've only just started using them in this last week, but they're the same. Looking good on layer 1, then the errors are way up on layer 2.

[Cynthia]

I have more or less the same writer as you - but the PATA version. I never burned that media id on that writer. I'll do some burns at the various speeds and post the results.

 

1. The speed seems to go in steps in a symmetrical pattern.

I have the same pattern.

 

[LIGHTNING UK!]

I don't think there's anything odd going on here.... everything looks perfectly normal to me with regards to higher error rates on the 2nd layer.

[Sigma]

Really? Well that's put my mind at rest anyway. Many thanks for the help.

[Cynthia]

8x write.