holygamer Posted July 31, 2021 Posted July 31, 2021 Hi, I've got a few game CDs/DVDs and game demo discs which nobody else has uploaded anywhere online so while I can create a hash of a CD I have nothing to compare it against to check if my CDs have bitrot or not. Is there a way to check for bitrot/missing data with ImgBurn when backing up to an image if I have no other file to compare my image backup with? Will ImgBurn simply fail to create a backup image if the disc has bitrot because data is missing? Also what image formats should I backup games to for game with and without redbook audio? How many different types are there? Thanks
LIGHTNING UK! Posted August 1, 2021 Posted August 1, 2021 There's error correction built into most data sectors, so the drive should know if it has read a sector correctly. If it hasn't/can't, it should return an error to the program and the program will then inform you. Audio tracks / sectors don't work like that though. If there's an error in one of those, you'll just have to live with it - but I'm sure it would only be a tiny blip. 1 bad sector is 1/75th of a second. The program should suggest an appropriate image format type for the disc in the drive. It'll use ISO for basic discs with a single Mode 1 track and it'll use BIN/CUE for everything else.
dbminter Posted August 1, 2021 Posted August 1, 2021 Yes, basically, if a disc is suffering from disc rot, it will simply fail to read to an image file. So, you'll know fairly quickly if it is when ImgBurn fails to read the disc fully.
holygamer Posted August 1, 2021 Author Posted August 1, 2021 7 hours ago, LIGHTNING UK! said: There's error correction built into most data sectors, so the drive should know if it has read a sector correctly. If it hasn't/can't, it should return an error to the program and the program will then inform you. Audio tracks / sectors don't work like that though. If there's an error in one of those, you'll just have to live with it - but I'm sure it would only be a tiny blip. 1 bad sector is 1/75th of a second. The program should suggest an appropriate image format type for the disc in the drive. It'll use ISO for basic discs with a single Mode 1 track and it'll use BIN/CUE for everything else. Thanks. Do you know of any other programs that can check both data and audio tracks / sectors for errors such as missing data due to bit rot?
LIGHTNING UK! Posted August 1, 2021 Posted August 1, 2021 EAC is a good choice for audio stuff. No idea how well that’ll work for data+audio discs.
holygamer Posted August 1, 2021 Author Posted August 1, 2021 Any other programs for discs with both audio and video? At the moment I'm trying to read a Doom shovelware CD called "Cobra Utilities for Doom & Doom II" from 1995. It's just a data CD and the disc looks to be in mint condition. When I try to create an ISO at max read speed it says "A timeout has occured whilst parsing the ISO9660 file system". I clicked on Yes to tell it to give more time to finish but the error pops up again after several seconds. If I click No then it starts creating the ISO. Why's it giving an error if it IS able to create an ISO? Anyway, in the end, I just cancelled everything and restarted the ISO creation process and this time it started creating the ISO without showing me the error message. Any idea what all of that was about? Log is below: I 20:26:44 ImgBurn Version 2.5.8.0 started! I 20:26:44 Microsoft Windows 7 Professional x64 Edition (6.1, Build 7601 : Service Pack 1) I 20:26:44 Total Physical Memory: 16,734,276 KiB - Available: 471,388 KiB I 20:26:44 Initialising ElbyCDIO... I 20:26:44 ELBYCDIO.DLL - Elaborate Bytes CDRTools - ElbyCDIO DLL - Version 6.1.6.1 I 20:26:44 Searching for SCSI / ATAPI devices... I 20:26:44 -> Drive 1 - Info: HL-DT-ST BD-RE BH10LS38 1.03-A0 (J:) (SATA) I 20:26:44 -> Drive 2 - Info: ELBY CLONEDRIVE 1.4 (F:) (SCSI) I 20:26:44 -> Drive 3 - Info: 2208M 2208M-Cdrom xx.x (D:) (USB) I 20:26:44 Found 1 CD-RW, 1 BD-ROM/HD DVD-ROM and 1 BD-RE! I 20:27:56 Operation Started! I 20:27:56 Source Device: [1:0:0] HL-DT-ST BD-RE BH10LS38 1.03 (J:) (SATA) I 20:27:56 Source Media Type: CD-ROM I 20:27:56 Source Media Supported Read Speeds: 10x I 20:27:56 Source Media Supported Write Speeds: 4x, 8x, 16x, 24x, 32x, 40x, 48x I 20:27:56 Source Media Sectors: 153,900 I 20:27:56 Source Media Size: 315,187,200 bytes I 20:27:56 Source Media Volume Identifier: COBRA_3A I 20:27:56 Source Media Volume Set Identifier: COBRA_3A I 20:27:56 Source Media File System(s): ISO9660 I 20:27:56 Read Speed (Data/Audio): MAX / MAX I 20:27:56 Destination File: X:\Editing\Cobra Disc.iso I 20:27:56 Destination Free Space: 98,355,888,128 Bytes (96,050,672.00 KiB) (93,799.48 MiB) (91.60 GiB) I 20:27:56 Destination File System: NTFS I 20:27:56 File Splitting: Auto I 20:27:57 Read Speed - Effective: 10x W 20:34:27 ISO9660 File System Parsing Aborted! W 20:34:27 Reason: Timeout Exceeded I 20:34:27 Reading Session 1 of 1... (1 Track, LBA: 0 - 153899) I 20:34:27 Reading Track 1 of 1... (MODE1/2048, LBA: 0 - 153899) I 20:34:38 Abort Request Acknowledged E 20:34:38 Failed to Read Sectors! I 20:34:39 Exporting Graph Data... I 20:34:39 Graph Data File: C:\Users\Dave\AppData\Roaming\ImgBurn\Graph Data Files\HL-DT-ST_BD-RE_BH10LS38_1.03_01-AUGUST-2021_20-27_N-A.ibg I 20:34:39 Export Successfully Completed! E 20:34:39 Operation Aborted! - Duration: 00:06:42 E 20:34:39 Average Read Rate: 12 KiB/s (0.1x) - Maximum Read Rate: 599 KiB/s (3.5x) I 20:34:51 Operation Started! I 20:34:51 Source Device: [1:0:0] HL-DT-ST BD-RE BH10LS38 1.03 (J:) (SATA) I 20:34:51 Source Media Type: CD-ROM I 20:34:51 Source Media Supported Read Speeds: 10x I 20:34:51 Source Media Supported Write Speeds: 4x, 8x, 16x, 24x, 32x, 40x, 48x I 20:34:51 Source Media Sectors: 153,900 I 20:34:51 Source Media Size: 315,187,200 bytes I 20:34:51 Source Media Volume Identifier: COBRA_3A I 20:34:51 Source Media Volume Set Identifier: COBRA_3A I 20:34:51 Source Media File System(s): ISO9660 I 20:34:51 Read Speed (Data/Audio): MAX / MAX I 20:34:51 Destination File: X:\Editing\Cobra Disc.iso I 20:34:51 Destination Free Space: 98,355,163,136 Bytes (96,049,964.00 KiB) (93,798.79 MiB) (91.60 GiB) I 20:34:51 Destination File System: NTFS I 20:34:51 File Splitting: Auto I 20:34:52 Read Speed - Effective: 10x I 20:35:08 Reading Session 1 of 1... (1 Track, LBA: 0 - 153899) I 20:35:08 Reading Track 1 of 1... (MODE1/2048, LBA: 0 - 153899) I 20:41:28 Exporting Graph Data... I 20:41:28 Graph Data File: C:\Users\Dave\AppData\Roaming\ImgBurn\Graph Data Files\HL-DT-ST_BD-RE_BH10LS38_1.03_01-AUGUST-2021_20-34_N-A.ibg I 20:41:28 Export Successfully Completed! I 20:41:28 Operation Successfully Completed! - Duration: 00:06:36 I 20:41:28 Average Read Rate: 777 KiB/s (4.5x) - Maximum Read Rate: 1,076 KiB/s (6.2x)
dbminter Posted August 1, 2021 Posted August 1, 2021 Could be the LG drive in question. LG drives are usually not the best at reading things.
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