Hi guys, I was burning CD-Rs since several days now. My drive supports these write speeds: 16x, 24x, 32x, 40x and 48x.
When I choose 2x as the burn speed, it correctly detects the misscompare and switches to 16x write speed since it is the closest to 2x the drive supports.
But the problem comes here: when I see the logs at the end of the burning session, it ALWAYS burned at a maximum speed of ~14.1x and the average write speed is always 14x. So it never actually burns at 16x as stated in the logs.
Before you answer that this is because it tries to burn at less than 16x because I selected 2x read this: This happens always, no matter which speed I choose. I tried with 1x, 2x, 4x, 8x, 10x, 12x, 14x, 16x, 18x and 20x and all of them ended in the same logs: average write speed of 14x and maximum about 14.1x.
Where is the problem?
My drive is an ATAPI iHAS122 on a desktop computer.
The logs of a burning session selecting 20x as the write speed:
Info 19:59:33 ImgBurn Version 2.5.8.0 started!
Info 19:59:33 Microsoft Windows 7 Professional x64 Edition (6.1, Build 7601 : Service Pack 1)
Info 19:59:33 Total Physical Memory: 4.158.580 KiB - Available: 3.032.232 KiB
Info 19:59:33 Initialising SPTI...
Info 19:59:33 Searching for SCSI / ATAPI devices...
Info 19:59:34 -> Drive 1 - Info: ATAPI iHAS122 ZL0C (D:) (ATA)
Info 19:59:34 Found 1 DVD±RW/RAM!
Info 19:59:46 Operation Started!
Info 19:59:46 Source File: C:\Users\Admin\Desktop\game.cue
Info 19:59:46 Source File Sectors: 315.736 (MODE2/FORM1/2352)
Info 19:59:46 Source File Size: 742.611.072 bytes
Info 19:59:46 Source File Volume Identifier: GAME_NTSC
Info 19:59:46 Source File File System(s): ISO9660
Info 19:59:46 Destination Device: [3:0:0] ATAPI iHAS122 ZL0C (D:) (ATA)
Info 19:59:46 Destination Media Type: CD-R (Disc ID: 97m27s18f, Plasmon Data Systems)
Info 19:59:46 Destination Media Supported Write Speeds: 16x, 24x, 32x, 40x, 48x
Info 19:59:46 Destination Media Sectors: 359.847
Info 19:59:46 Write Mode: CD
Info 19:59:46 Write Type: SAO
Info 19:59:46 Write Speed: 20x
Info 19:59:46 Lock Volume: Yes
Info 19:59:46 Test Mode: No
Info 19:59:46 OPC: No
Info 19:59:46 BURN-Proof: Enabled
Warn 19:59:46 Write Speed Miscompare! - Wanted: 3.528 KB/s (20x), Got: 2.823 KB/s (16x) <--------
Warn 19:59:46 The drive only supports writing these discs at 16x, 24x, 32x, 40x, 48x. <--------
Info 19:59:46 Advanced Settings - Force HT: No, Online HT: No, OverSpeed: No, SmartBurn: Yes
Info 19:59:46 CD/DVD Life Record Count: 102 - CD/DVD Record Count: 7
Info 19:59:47 Filling Buffer... (80 MiB)
Info 19:59:47 Writing LeadIn...
Info 20:00:03 Writing Session 1 of 1... (1 Track, LBA: 0 - 315735)
Info 20:00:03 Writing Track 1 of 1... (MODE2/FORM1/2352, LBA: 0 - 315735)
Info 20:04:25 Synchronising Cache...
Info 20:04:35 Exporting Graph Data...
Info 20:04:35 Graph Data File: C:\Users\Admin\AppData\Roaming\ImgBurn\Graph Data Files\ATAPI_iHAS122_ZL0C_MIÉRCOLES-07-DE-JULIO-DE-2021_07-59_p.m._97m27s18f_20x.ibg
Info 20:04:35 Export Successfully Completed!
Info 20:04:35 Operation Successfully Completed! - Duration: 00:04:49
Info 20:04:35 Average Write Rate: 2.778 KiB/s (14.0x) - Maximum Write Rate: 2.796 KiB/s (14.1x) <--------
Info 20:04:35 Cycling Tray before Verify...
Warn 20:04:43 Waiting for device to become ready...
Info 20:04:51 Device Ready!
Info 20:04:53 Operation Started!
Info 20:04:53 Source Device: [3:0:0] ATAPI iHAS122 ZL0C (D:) (ATA)
Info 20:04:53 Source Media Type: CD-R (Disc ID: 97m27s18f, Plasmon Data Systems)
Info 20:04:53 Source Media Supported Read Speeds: 4x, 8x, 10x, 16x, 24x, 32x, 40x, 48x
Info 20:04:53 Source Media Supported Write Speeds: 16x, 24x, 32x, 40x, 48x
Info 20:04:53 Source Media Sectors: 315.736
Info 20:04:53 Source Media Size: 742.611.072 bytes
Info 20:04:53 Image File: C:\Users\Admin\Desktop\game.cue
Info 20:04:53 Image File Sectors: 315.736 (MODE2/FORM1/2352)
Info 20:04:53 Image File Size: 742.611.072 bytes
Info 20:04:53 Image File Volume Identifier: GAME_NTSC
Info 20:04:53 Image File File System(s): ISO9660
Info 20:04:53 Read Speed (Data/Audio): MAX / MAX
Info 20:04:54 Read Speed - Effective: 48x
Info 20:04:55 Verifying Session 1 of 1... (1 Track, LBA: 0 - 315735)
Info 20:04:55 Verifying Track 1 of 1... (MODE2/FORM1/2352, LBA: 0 - 315735)
Info 20:07:05 Exporting Graph Data...
Info 20:07:05 Graph Data File: C:\Users\Admin\AppData\Roaming\ImgBurn\Graph Data Files\ATAPI_iHAS122_ZL0C_MIÉRCOLES-07-DE-JULIO-DE-2021_07-59_p.m._97m27s18f_20x.ibg
Info 20:07:05 Export Successfully Completed!
Info 20:07:05 Operation Successfully Completed! - Duration: 00:02:10
Info 20:07:05 Average Verify Rate: 5.621 KiB/s (28.4x) - Maximum Verify Rate: 7.962 KiB/s (40.2x)