Problem burning dual layer media with AD-7200S

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.

  1. 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±RW, 1 DVD±RW/RAM and 2 BD-ROM/HD DVD-ROMs!
I 20:44:16 Operation Started!
I 20:44:16 Source File: D:\DVD_ROM.dvd
I 20:44:16 Source File Sectors: 3,697,696 (MODE1/2048)
I 20:44:16 Source File Size: 7,572,881,408 bytes
I 20:44:16 Source File Volume Identifier: DVD_ROM
I 20:44:16 Source File Volume Set Identifier: 356fc000MS UDFBridge
I 20:44:16 Source File Application Identifier: CDIMAGE 2.45 (12/06/2000 TM)
I 20:44:16 Source File Implementation Identifier: Microsoft CDIMAGE UDF
I 20:44:16 Source File File System(s): ISO9660, UDF (1.50)
I 20:44:16 Destination Device: [1:0:0] Optiarc DVD RW AD-7200S 1.09 (I:) (ATA)
I 20:44:16 Destination Media Type: DVD+R DL (Disc ID: MKM-003-00) (Speeds: 4x, 6x, 8x)
I 20:44:16 Destination Media Sectors: 4,173,824
I 20:44:16 Write Mode: DVD
I 20:44:16 Write Type: DAO
I 20:44:16 Write Speed: 8x
I 20:44:16 Link Size: Auto
I 20:44:16 Test Mode: No
I 20:44:16 OPC: No
I 20:44:16 BURN-Proof: Enabled
I 20:44:16 Book Type Setting: DVD-ROM
I 20:44:16 Optimal L0 Data Zone Capacity: 1,913,760
I 20:44:16 Optimal L0 Data Zone Method: Copied From Original Disc
I 20:44:24 Filling Buffer... (40 MB)
I 20:44:25 Writing LeadIn...
I 20:44:29 Writing Session 1 of 1... (1 Track, LBA: 0 - 3697695)
I 20:44:29 Writing Track 1 of 1... (MODE1/2048, LBA: 0 - 3697695)
I 20:44:29 Writing Layer 0... (LBA: 0 - 1913759)
I 20:52:45 Writing Layer 1... (LBA: 1913760 - 3697695)
I 21:00:20 Synchronising Cache...
I 21:00:21 Closing Track...
I 21:00:36 Finalising Disc...
I 21:02:10 Exporting Graph Data...
I 21:02:11 Graph Data File: C:\Documents and Settings\Steve\Application Data\ImgBurn\Graph Data Files\Optiarc_DVD_RW_AD-7200S_1.09_07-MARCH-2009_20-44_MKM-003-00_8x.ibg
I 21:02:11 Export Successfully Completed!
I 21:02:11 Operation Successfully Completed! - Duration: 00:17:54
I 21:02:11 Average Write Rate: 7,784 KB/s (5.6x) - Maximum Write Rate: 11,154 KB/s (8.1x)
I 21:04:29 Close Request Acknowledged
I 21:04:29 Closing Down...
I 21:04:29 Shutting down SPTI...
I 21:04:29 ImgBurn closed!

I believe that the errors are within acceptable limits, but what’s the reason for this? Bad compatibility between the burner and media perhaps? It’s a shame the second layer isn’t like the first, cos if it was it would be a pretty good burn.

Any help would be appreciated! Many thanks,

Sigma.

Everything looks normal to me.

The burn speed pattern is ok. That is called a Z-CLV pattern (Zone Constant Linear Velocity).
Getting higher errors in the second layer is what you will get with any burner.
If you scanned that on a Lite-On I could compare with mine. But judging by the quality rating (93.10 %) that disc looks good therefore keep it.