lurkist

Our buffers are completely emptying, momentarily slowing the burn so that it never quite reaches it's potential. There's no excuse for sticking slow / small buffer memory in drives of this nature, especially from a company like Sony. Thank god for BurnProof, and I stand by my "annoying"!

You're not alone, see my thread from a week or two ago - Buffer Underruns Like you I just have to accept that this is the normal functionality of the writer. Annoying though!

I guess so. At the end of the day, the disks are verifying OK so no harm done. I am getting the odd power calibration error at finalisation stage, but this I am putting down to media. Guess I'll have to put up with icicles dangling off my graphs! Cheers for the help.

OK, same thing happening here. This time it's a CD-R, but the data came from my SATA HD. I 20:36:44 ImgBurn Version 2.5.4.0 started! I 20:36:44 Microsoft Windows XP Professional (5.1, Build 2600 : Service Pack 3) I 20:36:44 Total Physical Memory: 2,096,620 KB - Available: 1,702,956 KB I 20:36:44 Initialising SPTI... I 20:36:44 Searching for SCSI / ATAPI devices... I 20:36:44 -> Drive 1 - Info: Optiarc DVD RW AD-5260S 1.00 (D:) (ATA) I 20:36:44 Found 1 DVD±RW! I 20:36:50 Operation Started! I 20:36:51 Building Image Tree... I 20:36:51 Checking Directory Depth... I 20:36:51 Calculating Totals... I 20:36:51 Preparing Image... I 20:36:51 Checking Path Length... I 20:36:51 Contents: 277 Files, 7 Folders I 20:36:51 Content Type: Data I 20:36:51 Data Type: MODE1/2048 I 20:36:51 File System(s): ISO9660, Joliet I 20:36:51 Volume Label: [Not Configured] I 20:36:51 Size: 462,032,686 bytes I 20:36:51 Sectors: 225,782 I 20:36:51 Image Size: 462,520,320 bytes I 20:36:51 Image Sectors: 225,840 I 20:36:51 Operation Successfully Completed! - Duration: 00:00:00 I 20:37:27 Operation Started! I 20:37:27 Building Image Tree... I 20:37:27 Checking Directory Depth... I 20:37:27 Calculating Totals... I 20:37:27 Preparing Image... I 20:37:27 Checking Path Length... I 20:37:27 Contents: 277 Files, 7 Folders I 20:37:27 Content Type: Data I 20:37:27 Data Type: MODE1/2048 I 20:37:27 File System(s): ISO9660, Joliet I 20:37:27 Volume Label: HTC_Stuff I 20:37:27 Size: 462,032,686 bytes I 20:37:27 Sectors: 225,782 I 20:37:27 Image Size: 462,520,320 bytes I 20:37:27 Image Sectors: 225,840 I 20:37:30 Operation Successfully Completed! - Duration: 00:00:02 I 20:37:30 Operation Started! I 20:37:30 Source File: -==/\/[bUILD IMAGE]\/\==- I 20:37:30 Source File Sectors: 225,840 (MODE1/2048) I 20:37:30 Source File Size: 462,520,320 bytes I 20:37:30 Source File Volume Identifier: HTC_Stuff I 20:37:30 Source File Volume Set Identifier: UNDEFINED I 20:37:30 Source File Application Identifier: ImgBurn v2.5.4.0 - The Ultimate Image Burner! I 20:37:30 Source File Implementation Identifier: ImgBurn v2.5.4.0 I 20:37:30 Source File File System(s): ISO9660, Joliet I 20:37:30 Destination Device: [2:0:0] Optiarc DVD RW AD-5260S 1.00 (D:) (ATA) I 20:37:30 Destination Media Type: CD-R (Disc ID: 97m27s18f, Plasmon Data Systems) (Speeds: 8x, 16x, 24x, 32x, 40x, 48x) I 20:37:30 Destination Media Sectors: 359,847 I 20:37:30 Write Mode: CD I 20:37:30 Write Type: SAO I 20:37:30 Write Speed: MAX I 20:37:30 Lock Volume: Yes I 20:37:30 Test Mode: No I 20:37:30 OPC: Yes I 20:37:30 BURN-Proof: Enabled I 20:37:30 Write Speed Successfully Set! - Effective: 8,467 KB/s (48x) I 20:37:34 Filling Buffer... (40 MB) I 20:37:35 Writing LeadIn... I 20:37:44 Writing Session 1 of 1... (1 Track, LBA: 0 - 225839) I 20:37:44 Writing Track 1 of 1... (MODE1/2048, LBA: 0 - 225839) I 20:39:40 Synchronising Cache... I 20:39:56 Exporting Graph Data... I 20:39:56 Graph Data File: C:\Documents and Settings\Me\Application Data\ImgBurn\Graph Data Files\Optiarc_DVD_RW_AD-5260S_1.00_23-JANUARY-2011_20-37_97m27s18f_MAX.ibg I 20:39:56 Export Successfully Completed! I 20:39:56 Operation Successfully Completed! - Duration: 00:02:26 I 20:39:56 Average Write Rate: 3,893 KB/s (26.0x) - Maximum Write Rate: 5,717 KB/s (38.1x) I 20:39:56 Cycling Tray before Verify... W 20:40:04 Waiting for device to become ready... I 20:40:11 Device Ready! I 20:40:13 Operation Started! I 20:40:13 Source Device: [2:0:0] Optiarc DVD RW AD-5260S 1.00 (D:) (ATA) I 20:40:13 Source Media Type: CD-R (Disc ID: 97m27s18f, Plasmon Data Systems) (Speeds: 8x, 16x, 24x, 32x, 40x, 48x) I 20:40:13 Image File: -==/\/[bUILD IMAGE]\/\==- I 20:40:13 Image File Sectors: 225,840 (MODE1/2048) I 20:40:13 Image File Size: 462,520,320 bytes I 20:40:13 Image File Volume Identifier: HTC_Stuff I 20:40:13 Image File Volume Set Identifier: UNDEFINED I 20:40:13 Image File Application Identifier: ImgBurn v2.5.4.0 - The Ultimate Image Burner! I 20:40:13 Image File Implementation Identifier: ImgBurn v2.5.4.0 I 20:40:13 Image File File System(s): ISO9660, Joliet I 20:40:13 Read Speed (Data/Audio): MAX / MAX I 20:40:13 Verifying Session 1 of 1... (1 Track, LBA: 0 - 225839) I 20:40:13 Verifying Track 1 of 1... (MODE1/2048, LBA: 0 - 225839) I 20:41:56 Exporting Graph Data... I 20:41:56 Graph Data File: C:\Documents and Settings\Me\Application Data\ImgBurn\Graph Data Files\Optiarc_DVD_RW_AD-5260S_1.00_23-JANUARY-2011_20-37_97m27s18f_MAX.ibg I 20:41:56 Export Successfully Completed! I 20:41:56 Operation Successfully Completed! - Duration: 00:01:42 I 20:41:56 Average Verify Rate: 4,428 KB/s (29.5x) - Maximum Verify Rate: 5,692 KB/s (37.9x)

Already done Nah, I chose not to save them, I'll get one posted from my next burn.

Hi, I'm using an Optiarc 5260s, SATA - UDMA mode 6, to burn data from a storage HD on IDE also UDMA mode 6. (I would use my SATA HD, but it won't go beyond UDMA mode 5 and is annoyingly and inexplicably slower.) As you can see from the graphs I'm getting device buffer underruns regularly causing slowdowns throughout the burn, even at low speeds - the program buffer doesn't move a nanometer and I'm dubious as to whether it's doing anything at all! I'm also having audio troubles with this burner - having no analog outs I've no option but to use digital and it seems to crash various things such as Realplayer. Media used in these two examples are - (Single layer) TDK +R 1-16X, and (Dual layer) Aone +R 8X. No I havn't tried Verbatim media yet (but will be for my next batch if they do printable versions) but it doesn't strike me as a media related issue. And no, I havn't got a log to show you as yet. No other programs are running, and antivirus is temporarily halted. Thanks for any suggestions.