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silasqwerty

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About silasqwerty

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  1. silasqwerty

    Not all sectors being read on CD-R

    Thank you very much! Unless I forgot something (which is quite possible), I think that answers all of my questions!
  2. silasqwerty

    Not all sectors being read on CD-R

    Alright! Thank you for clearing up the confusion and being so patient with me! I'm still pretty new to this so I appreciate you taking the time to explain it. The last thing I'll ask about is when ImgBurn dumps the disc, the image it makes verifies without issue while all the other images I've tested give me that warning. That's another reason I thought it was a bug with ImgBurn. What do you think about that?
  3. silasqwerty

    Not all sectors being read on CD-R

    Alright, here you go! Also then if I understand you correctly, that warning "Session x, Track x is smaller on the disc than it is in the image file." is based on a number that isn't always correct? Would it be better to change that warning to only happen if the number of sectors according to the TOC is different, and not if there's difference in the more cosmetic number? Memorex MRX-650LE v7 1.00 (USB) Current Profile: CD-R Disc Information: Status: Incomplete State of Last Session: Empty Erasable: No Sessions: 2 Sectors: 93,122 Size: 190,713,856 bytes Time: 20:43:47 (MM:SS:FF) Free Sectors: 255,323 Free Space: 522,901,504 bytes Free Time: 56:46:23 (MM:SS:FF) Next Writable Address: 104524 MID: 97m26s60f (CMC Magnetics Corp.) Supported Read Speeds: 10x, 16x, 20x, 24x File System Information: Sectors: 93,124 Size: 190,717,952 bytes Time: 20:43:49 (MM:SS:FF) TOC Information: Session 1... (LBA: 0 / 00:02:00) -> Track 01 (Mode 1, LBA: 0 / 00:02:00) -> LeadOut (LBA: 93124 / 20:43:49) Track Information: Session 1... -> Track 01 (LTSA: 0, LTS: 93122, LRA: 0) ATIP Information: Disc ID: 97m26s60f Manufacturer: CMC Magnetics Corp. Start Time of LeadIn: 97m26s60f Last Possible Start Time of LeadOut: 79m59s74f
  4. silasqwerty

    Not all sectors being read on CD-R

    Well it seems to me that ImgBurn isn't reading the last two sectors on the disc, I don't think it's particularly important information per se, but it's enough to make it inconsistent between the programs. And there is a problem somewhere since the programs are disagreeing about what the disc image should be, but I do admit it's not a particularly big problem. For all I know, it may be an issue with the other programs. Also, it looks like it's only a problem with some drives, I've only tried two so it might only affect a small number of them.
  5. silasqwerty

    Not all sectors being read on CD-R

    I'm sorry that I wasn't clear, it seems that ImgBurn isn't reading all of the sectors on CD-R discs, and that I noticed this because ImgBurn said that disc images made by other programs have more sectors than it sees on the disc. Someone who knows a lot more about this than me wrote this: "The problem comes because ImgBurn uses the SCSI READ CAPACITY command to decide the size of compact discs. DiscImageChef instead reads and interprets the Table of Contents, that describes the disc start and end. While that command should indicate the same size as the TOC interpretation, seems to not be so in some conditions (drive firmware bug?)." https://github.com/claunia/DiscImageChef/wiki/Bugs-in-other-dumping-software
  6. silasqwerty

    Not all sectors being read on CD-R

    Hello! I noticed that not all the sectors at the end of a CD-R are being read, I noticed this when verifying disc images made by different programs such as Alcohol 120%. A screenshot and explanation of what seems to be happening here: https://github.com/claunia/DiscImageChef/wiki/Bugs-in-other-dumping-software This only seems to happen with CD-R discs, and I've tested it on two completely separate drives and computers. EDIT: Log is of dumping a disc, I can provide one for verifying a disc too if you need it. Log: I 17:12:22 ImgBurn Version 2.5.8.0 started! I 17:12:22 Microsoft Windows 8 Core x64 Edition (6.2, Build 9200) I 17:12:22 Total Physical Memory: 8,339,872 KiB - Available: 2,544,580 KiB I 17:12:22 Initialising SPTI... I 17:12:22 Searching for SCSI / ATAPI devices... I 17:12:22 -> Drive 1 - Info: Memorex MRX-650LE v7 1.00 (I:) (USB 2.0) I 17:12:22 -> Drive 2 - Info: ELBY CLONEDRIVE 1.4 (D:) (SCSI) I 17:12:22 Found 1 DVD±RW/RAM and 1 BD-ROM/HD DVD-ROM! I 17:12:44 Operation Started! I 17:12:44 Source Device: [0:0:0] Memorex MRX-650LE v7 1.00 (I:) (USB) I 17:12:44 Source Media Type: CD-R (Disc ID: 97m26s60f, CMC Magnetics Corp.) I 17:12:44 Source Media Supported Read Speeds: 10x, 16x, 20x, 24x I 17:12:44 Source Media Supported Write Speeds: 10x I 17:12:44 Source Media Sectors: 93,122 I 17:12:44 Source Media Size: 190,713,856 bytes I 17:12:44 Source Media Volume Identifier: MDL_360_INSTALL_ I 17:12:44 Source Media File System(s): ISO9660, Joliet I 17:12:44 Read Speed (Data/Audio): MAX / 8x I 17:12:44 Destination File: C:\Users\silas\Documents\Alcohol 120%\MDL_360_INSTALL_.ISO I 17:12:44 Destination Free Space: 49,702,039,552 Bytes (48,537,148.00 KiB) (47,399.56 MiB) (46.29 GiB) I 17:12:44 Destination File System: NTFS I 17:12:44 File Splitting: Auto I 17:13:00 Read Speed - Effective: 24x I 17:13:04 Reading Session 1 of 1... (1 Track, LBA: 0 - 93123) I 17:13:04 Reading Track 1 of 1... (MODE1/2048, LBA: 0 - 93123) I 17:14:42 Exporting Graph Data... I 17:14:42 Graph Data File: C:\Users\silas\AppData\Roaming\ImgBurn\Graph Data Files\Memorex_MRX-650LE_v7_1.00_TUESDAY-DECEMBER-25-2018_5-12_PM_97m26s60f.ibg I 17:14:43 Export Successfully Completed! I 17:14:43 Operation Successfully Completed! - Duration: 00:01:57 I 17:14:43 Average Read Rate: 1,591 KiB/s (9.2x) - Maximum Read Rate: 2,332 KiB/s (13.5x)
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