mozart

L:\ is an old laptop drive, currently used only as a USB, redundant storage for ISO's. I have since generated anew ISO for the file in question and stored it on a safe drive. Thanks you your input.

There were indeed some bad sectors - the IMGBRN read error solved? Here is the relevant chkdsk /r report:

Do you mean the chkdsk with the /r switch? That's running now and it usually takes a very long time. I will post the results.

DSKCHK returned no errors. I ran it from CMD admin. Author UK, am I missing a program setting for IMGBRN so it first reads the source file BEFORE it writes a buffer on the blank (and ruin it if the write fails?)BTW, thanks for writing this code!

L:\ is an external HDD. I made a good disk from there two weeks ago. Is there a way to set IMGBRN so it first reads the source file BEFORE it writes a buffer on the blank (and ruin it if the write fails?)

Two Blu's ruined. I get the cyclical redundancy error, cannot source read file. Here is the log: ; //****************************************\\ ; ImgBurn Version 2.5.8.0 - Log ; Wednesday, 10 June 2015, 06:23:53 ; \\****************************************// ; ; I 06:01:21 ImgBurn Version 2.5.8.0 started! I 06:01:21 Microsoft Windows 8 Professional x64 Edition (6.2, Build 9200) I 06:01:21 Total Physical Memory: 8,060,996 KiB - Available: 6,498,772 KiB I 06:01:21 Initialising SPTI... I 06:01:21 Searching for SCSI / ATAPI devices... I 06:01:21 -> Drive 1 - Info: PIONEER BD-RW BDR-XD04 1.00-GENERAL (I:) (USB 2.0) I 06:01:21 -> Drive 2 - Info: HL-DT-ST DVDRAM GH24NSB0 LN00-10 (D:) (SATA) I 06:01:21 Found 1 DVD±RW/RAM and 1 BD-RE XL! I 06:10:49 Operation Started! I 06:10:49 Device: [0:0:0] PIONEER BD-RW BDR-XD04 1.00 (I:) (USB) I 06:10:49 Media Type: BD-R (Disc ID: RITEK-BR3-000) I 06:10:49 Media Supported Write Speeds: 2x, 4x, 6x I 06:10:49 Quick Erase: Yes I 06:10:49 Erasing Disc... E 06:10:49 Cannot Quick Erase BD-R Media! E 06:10:54 Operation Failed! - Duration: 00:00:05 I 06:17:16 Operation Started! I 06:17:16 Source File: L:\ISO\MCO ENCORES 2013 - 2015-II.iso I 06:17:16 Source File Sectors: 10,403,840 (MODE1/2048) I 06:17:16 Source File Size: 21,307,064,320 bytes I 06:17:16 Source File Volume Identifier: MCO_ENCORES_2013_2015_II I 06:17:16 Source File Volume Set Identifier: AAAABBBBCCCCDDDDEEEEFFFF I 06:17:16 Source File Application Identifier: DVDArchitectStudio I 06:17:16 Source File Implementation Identifier: 0 I 06:17:16 Source File File System(s): UDF (2.50) I 06:17:16 Destination Device: [0:0:0] PIONEER BD-RW BDR-XD04 1.00 (I:) (USB) I 06:17:16 Destination Media Type: BD-R (Disc ID: RITEK-BR3-000) I 06:17:16 Destination Media Supported Write Speeds: 2x, 4x, 6x I 06:17:16 Destination Media Sectors: 12,219,392 I 06:17:16 Write Mode: BD I 06:17:16 Write Type: DAO I 06:17:16 Write Speed: MAX I 06:17:16 Hardware Defect Management Active: No I 06:17:16 BD-R Verify Not Required: Yes I 06:17:16 Link Size: Auto I 06:17:16 Lock Volume: Yes I 06:17:16 Test Mode: No I 06:17:16 OPC: No I 06:17:16 BURN-Proof: Enabled I 06:17:16 Write Speed Successfully Set! - Effective: 26,970 KB/s (6x) I 06:17:16 Advanced Settings - Optimal Writing Speed: No I 06:17:16 Filling Buffer... (80 MiB) W 06:17:24 Failed to read from file: MCO ENCORES 2013 - 2015-II.iso W 06:17:24 Reason: Data error (cyclic redundancy check). W 06:21:02 Failed to read from file: MCO ENCORES 2013 - 2015-II.iso W 06:21:02 Reason: Data error (cyclic redundancy check). E 06:22:38 Failed to read from file: MCO ENCORES 2013 - 2015-II.iso E 06:22:38 Reason: Data error (cyclic redundancy check). I 06:22:38 Synchronising Cache... I 06:22:45 Closing Track... I 06:23:05 Finalising Disc... E 06:23:17 Failed to Write Image! E 06:23:17 Operation Failed! - Duration: 00:06:01 I 06:23:17 Average Write Rate: N/A - Maximum Write Rate: N/A I 06:23:52 Close Request Acknowledged I 06:23:52 Closing Down... I 06:23:53 Shutting down SPTI... I 06:23:53 ImgBurn closed!