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Media scan doesn't properly run with an HD-DVD #632

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opened 2026-01-29 15:24:29 +00:00 by claunia · 1 comment
claunia commented 2026-01-29 15:24:29 +00:00
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Originally created by @TheRogueArchivist on GitHub (Jan 16, 2021).

Prerequisites

  • Are you running the latest version?
  • Can you reproduce the problem in the debug version?

Check and fill as appropriate:

  • I was running Aaru under Windows 10...
  • ...in 64-bit
  • ...using an Intel / AMD processor
  • Device manufacturer: Toshiba
  • Model: DVD/HD X807616
  • Bus:
    • Parallel ATA
    • Serial ATA
    • SCSI (any)
    • ATAPI (mark above if parallel or serial)
    • USB
      • USB cable manufacturer:
      • USB cable model:
    • FireWire
    • PCMCIA
    • SecureDigital
      • Using a USB card reader
        • USB card reader manufacturer:
        • USB card reader model:
    • MultiMediaCard
      • Using a USB card reader
        • USB card reader manufacturer:
        • USB card reader model:
  • I was dumping media (disk, tape, etc)...
  • I was analyzing media (disk, tape, etc)...
  • I was scanning media (disk, tape, etc)...

Description

When running media scan on an HD-DVD, it speeds through the disc at 1000 MiB/sec, and then reports that either every or the vast majority of sectors are bad. There are no bad sectors when dumping the disc.

Exact command line used:

Aaru [command] [parameters]

Output of command execution with debug output enabled

aaru 5.2.99.3380-alpha+cce0a874 built by DESKTOP-8B4K7NM in Debug, modified
Copyright c 2011-2021 Natalia Portillo

Using SCSI READ (10) command.
Media has 6358272 blocks of 2048 bytes/each. (for a total of 12.127 GiB)
Reading 64 sectors at a time.
Reading sector 6358208 of 6358272 (1040.292 MiB/sec.)

Media details

HD-DVD movie - Firewall

Originally created by @TheRogueArchivist on GitHub (Jan 16, 2021). ### Prerequisites * [X] Are you running the latest version? * [X] Can you reproduce the problem in the debug version? ### Check and fill as appropriate: * [X] I was running Aaru under Windows 10... * [X] ...in 64-bit * [X] ...using an Intel / AMD processor * **Device manufacturer**: Toshiba * **Model**: DVD/HD X807616 * **Bus**: * [ ] Parallel ATA * [ ] Serial ATA * [ ] SCSI (any) * [ ] ATAPI (mark above if parallel or serial) * [X] USB * **USB cable manufacturer**: * **USB cable model**: * [ ] FireWire * [ ] PCMCIA * [ ] SecureDigital * [ ] Using a USB card reader * **USB card reader manufacturer**: * **USB card reader model**: * [ ] MultiMediaCard * [ ] Using a USB card reader * **USB card reader manufacturer**: * **USB card reader model**: * [ ] I was dumping media (disk, tape, etc)... * [ ] I was analyzing media (disk, tape, etc)... * [X] I was scanning media (disk, tape, etc)... ### Description <!-- Description of the bug --> When running media scan on an HD-DVD, it speeds through the disc at 1000 MiB/sec, and then reports that either every or the vast majority of sectors are bad. There are no bad sectors when dumping the disc. ### Exact command line used: `Aaru [command] [parameters]` ### Output of command execution with debug output enabled ``` aaru 5.2.99.3380-alpha+cce0a874 built by DESKTOP-8B4K7NM in Debug, modified Copyright c 2011-2021 Natalia Portillo Using SCSI READ (10) command. Media has 6358272 blocks of 2048 bytes/each. (for a total of 12.127 GiB) Reading 64 sectors at a time. Reading sector 6358208 of 6358272 (1040.292 MiB/sec.) ``` ### Media details <!-- Photo, EAN-13, if possible eBay link --> HD-DVD movie - Firewall
claunia added the bug label 2026-01-29 15:24:29 +00:00
claunia commented 2026-01-29 15:24:31 +00:00
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@FakeShemp commented on GitHub (Jul 4, 2021):

4784a6c101/Aaru.Core/Devices/Scanning/SCSI.cs (L280)

Blu-rays and HDDVDs don't like to read 64 blocks at a time. Changing this to 32 solves the issue.

@FakeShemp commented on GitHub (Jul 4, 2021): https://github.com/aaru-dps/Aaru/blob/4784a6c101c60ce9d4c413d3bc5f742d6a510280/Aaru.Core/Devices/Scanning/SCSI.cs#L280 Blu-rays and HDDVDs don't like to read 64 blocks at a time. Changing this to 32 solves the issue.
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Reference: aaru-dps/Aaru-aaru-dps#632
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