gemad9

Yes. Actually I've tried with 3 50GB RE disks (Sony) and 3 25GB RE disks (Verbatim). Two out of three Verbatims were successful with one producing the same kind of error. For the Sony 50GB disks, One succeeded and two showed the same kind of error that you see in the above log. The unreadable sector ID is always in a slightly different place. I also tried backing up commercial Blu-Ray DVDs (movies) from ripped files and from ripped ISOs using Imgburn with these disks. The disks showing the read error produces a stop in the movie in a stand-alone and a computer player for about a minute or so and then it continues. The disks that pass the DISCOVERY/verify test have no stops during the movie playback (as one would expect). Thanks for your help and very fast response. gemad9

Not sure what's causing this on a 50GB BD-RE DL. Repeating the process brings the same error but usually at slightly different sectors. Tried cleaning the drive. This log is typical: Thanks in advance for any help. gemad9 I 18:27:47 ImgBurn Version 2.5.1.0 started! I 18:27:47 Microsoft Windows 7 Ultimate x64 Edition (6.1, Build 7600) I 18:27:47 Total Physical Memory: 8,387,704 KB - Available: 6,986,124 KB I 18:27:47 Initialising SPTI... I 18:27:47 Searching for SCSI / ATAPI devices... I 18:27:47 -> Drive 1 - Info: HL-DT-ST BD-RE GGW-H20L YL05 (L:) (ATA) I 18:27:47 -> Drive 2 - Info: LITE-ON DVDRW LH-20A1L BL06 (K:) (ATA) I 18:27:47 -> Drive 3 - Info: _NEC DVD_RW ND-3500AG 2.16 (J:) (ATA) I 18:27:47 Found 1 DVD±RW, 1 DVD±RW/RAM and 1 HD DVD-ROM/BD-RE! I 18:28:33 Operation Started! I 18:28:33 Source File: -==/\/[DISCOVERY IMAGE]\/\==- I 18:28:33 Source File Sectors: 24,438,784 (MODE1/2048) I 18:28:33 Source File Size: 50,050,629,632 bytes I 18:28:33 Source File Volume Identifier: DISCOVERY_IMAGE I 18:28:33 Source File File System(s): None I 18:28:33 Destination Device: [4:0:0] HL-DT-ST BD-RE GGW-H20L YL05 (L:) (ATA) I 18:28:33 Destination Media Type: BD-RE (Disc ID: MEI-T01-01) (Speeds: 2x) I 18:28:33 Destination Media Sectors: 24,438,784 I 18:28:33 Write Mode: BD I 18:28:33 Write Type: DAO I 18:28:33 Write Speed: 1x I 18:28:33 BD-RE FastWrite: No I 18:28:33 Link Size: Auto I 18:28:33 Lock Volume: Yes I 18:28:33 Test Mode: No I 18:28:33 OPC: No I 18:28:33 BURN-Proof: Enabled W 18:28:33 Write Speed Miscompare! - Wanted: 4,496 KB/s (1x), Got: 8,991 KB/s (2x) I 18:28:33 Filling Buffer... (40 MB) I 18:28:34 Writing LeadIn... I 18:28:58 Writing Session 1 of 1... (1 Track, LBA: 0 - 24438783) I 18:28:58 Writing Track 1 of 1... (MODE1/2048, LBA: 0 - 24438783) I 20:00:39 Synchronising Cache... I 20:00:40 Exporting Graph Data... I 20:00:40 Graph Data File: C:\Users\Bob Yellin\AppData\Roaming\ImgBurn\Graph Data Files\HL-DT-ST_BD-RE_GGW-H20L_YL05_FRIDAY-JULY-16-2010_6-28_PM_MEI-T01-01_1x.ibg I 20:00:40 Export Successfully Completed! I 20:00:40 Operation Successfully Completed! - Duration: 01:32:06 I 20:00:40 Average Write Rate: 8,886 KB/s (2.0x) - Maximum Write Rate: 9,320 KB/s (2.1x) I 20:00:40 Cycling Tray before Verify... W 20:00:47 Waiting for device to become ready... I 20:01:08 Device Ready! I 20:01:09 Operation Started! I 20:01:09 Source Device: [4:0:0] HL-DT-ST BD-RE GGW-H20L YL05 (L:) (ATA) I 20:01:09 Source Media Type: BD-RE (Disc ID: MEI-T01-01) (Speeds: 2x) I 20:01:09 Image File: -==/\/[DISCOVERY IMAGE]\/\==- I 20:01:09 Image File Sectors: 24,438,784 (MODE1/2048) I 20:01:09 Image File Size: 50,050,629,632 bytes I 20:01:09 Image File Volume Identifier: DISCOVERY_IMAGE I 20:01:09 Image File File System(s): None I 20:01:09 Read Speed (Data/Audio): 1x / 1x I 20:01:09 Verifying Session 1 of 1... (1 Track, LBA: 0 - 24438783) I 20:01:09 Verifying Track 1 of 1... (MODE1/2048, LBA: 0 - 24438783) W 20:22:28 Failed to Read Sector 5650304 - Reason: Unknown (CRC or ECC Error) (ASC: 0x10, ASCQ: 0x90) E 23:36:19 Failed to Read Sector 5650304 - Reason: Unknown (CRC or ECC Error) (ASC: 0x10, ASCQ: 0x90) E 23:36:19 Failed to Verify Sectors! I 23:36:19 Exporting Graph Data... I 23:36:19 Graph Data File: C:\Users\Bob Yellin\AppData\Roaming\ImgBurn\Graph Data Files\HL-DT-ST_BD-RE_GGW-H20L_YL05_FRIDAY-JULY-16-2010_6-28_PM_MEI-T01-01_1x.ibg I 23:36:19 Export Successfully Completed! E 23:36:19 Operation Failed! - Duration: 03:35:10 I 23:36:19 Average Verify Rate: 875 KB/s (0.2x) - Maximum Verify Rate: 10,853 KB/s (2.4x) I 23:38:45 Close Request Acknowledged I 23:38:45 Closing Down... I 23:38:45 Shutting down SPTI... I 23:38:45 ImgBurn closed!