Mysterious unmountable image.

[MalMensa]

Hi. 

I have a strangely behaving DVD.  When an image is created from it, the image seems to be unmountable. Double clicking under Windows 10 just throws up the attached error: "Capture.JPG"

This is a burnt CD from a company we regularly do business with, we have successfully made image files of dozens of their disks. The disk itself can be read just fine, and the imaging process seems to run as expected. I can even open the image in WINRAR, so the data is actually there. Cannot get Windows 10 to mount it though. Tried on several machines.

I tried grabbing an old disk that I had imaged long ago, it worked as expected. Below are the outputs from "discovery", bad disk first, and a log of an image write that created an mountable image, 




VV BAD DISK VV

ATAPI DVD A  DH16AAS JL34 (ATA)

Current Profile: DVD-R

 

Disc Information:

Status: Incomplete

State of Last Session: Empty

Erasable: No

Sessions: 2

Sectors: 936,560

Size: 1,918,074,880 bytes

Time: 208:09:35 (MM:SS:FF)

Free Sectors: 1,323,424

Free Space: 2,710,372,352 bytes

Free Time: 294:07:49 (MM:SS:FF)

Next Writable Address: 974464

MID: MCC 03RG20

Supported Write Speeds: 6x, 8x, 12x, 16x

 

VV GOOD DISK VV

ATAPI DVD A  DH16AAS JL34 (ATA)

Current Profile: DVD-R

 

Disc Information:

Status: Incomplete

State of Last Session: Empty

Erasable: No

Sessions: 2

Sectors: 569,056

Size: 1,165,426,688 bytes

Time: 126:29:31 (MM:SS:FF)

Free Sectors: 1,690,928

Free Space: 3,463,020,544 bytes

Free Time: 375:47:53 (MM:SS:FF)

Next Writable Address: 606960

MID: CMC MAG. AM3

Supported Write Speeds: 6x, 8x, 12x, 16x

VV LOG OF WRITING AN UNMOUNTABLE IMAGE VV

I 16:43:42 ImgBurn Version 2.5.8.0 started!

I 16:43:42 Microsoft Windows 8 Professional x64 Edition (6.2, Build 9200)

I 16:43:42 Total Physical Memory: 4,193,524 KiB  -  Available: 451,232 KiB

I 16:43:42 Initialising SPTI...

I 16:43:42 Searching for SCSI / ATAPI devices...

I 16:43:43 -> Drive 1 - Info: ATAPI DVD A  DH16AAS JL34 (D:) (ATA)

I 16:43:43 -> Drive 2 - Info: Msft Virtual DVD-ROM 1.0 (G:) (Virtual)

I 16:43:43 -> Drive 3 - Info: Msft Virtual DVD-ROM 1.0 (E:) (Virtual)

I 16:43:43 Found 2 DVD-ROMs and 1 DVD±RW/RAM!

I 16:45:23 Operation Started!

I 16:45:23 Source Device: [2:1:0] ATAPI DVD A  DH16AAS JL34 (D:) (ATA)

I 16:45:23 Source Media Type: DVD-R (Book Type: DVD-R) (Disc ID: MCC 03RG20)

I 16:45:23 Source Media Supported Read Speeds: 2x, 4x, 6x, 8x, 12x, 16x

I 16:45:23 Source Media Supported Write Speeds: 6x, 8x, 12x, 16x

I 16:45:23 Source Media Sectors: 936,560 (Track Path: PTP)

I 16:45:23 Source Media Size: 1,918,074,880 bytes

I 16:45:23 Source Media Volume Identifier: 180313 Armana

I 16:45:23 Source Media Volume Set Identifier: 0B092D36 UDF Volume Set

I 16:45:23 Source Media Implementation Identifier: Microsoft Windows

I 16:45:23 Source Media File System(s): UDF (2.01)

I 16:45:23 Read Speed (Data/Audio): MAX / 20x

I 16:45:23 Destination File: C:\Users\malo.PFS\Desktop\Armana.iso

I 16:45:23 Destination Free Space: 740,668,612,608 Bytes (723,309,192.00 KiB) (706,356.63 MiB) (689.80 GiB)

I 16:45:23 Destination File System: NTFS

I 16:45:23 File Splitting: Auto

I 16:45:24 Read Speed - Effective: 6.4x - 16x

I 16:45:25 Reading Session 1 of 1... (1 Track, LBA: 0 - 936559)

I 16:45:25 Reading Track 1 of 1... (MODE1/2048, LBA: 0 - 936559)

I 16:48:00 Exporting Graph Data...

I 16:48:00 Graph Data File: C:\Users\malo.PFS\AppData\Roaming\ImgBurn\Graph Data Files\ATAPI_DVD_A_DH16AAS_JL34_TUESDAY-20-MARCH-2018_4-45_PM_MCC_03RG20.ibg

I 16:48:00 Export Successfully Completed!

I 16:48:00 Operation Successfully Completed! - Duration: 00:02:36

I 16:48:00 Average Read Rate: 12,007 KiB/s (8.9x) - Maximum Read Rate: 16,914 KiB/s (12.5x)

 

[dbminter]

What are the contents of this disc?  If it's not a bootable disc, i.e. just a disc of some contents that aren't made in any fancy way, you could try just creating a new ISO in ImgBurn Build mode.  See if that ISO mounts.  Of course, this doesn't solve why Windows won't mount that ISO.  But, you could spend the rest of your life trying to debug a Windows issue and get nowhere.  It's the nature of the Windows beast.  When something goes wrong with an internal Windows function, too often than not, the only solution is to restore Windows from an image where it worked before/reinstall Windows.  However, it's probably just a case of a weird ISO that isn't mounting correctly as you said another image does work.  Probably something wrong/weird with the source disc that is creating a weird ISO.

[MalMensa]

I doubt it is a problem that would be solved by a Windows reinstall, it is ONLY images created from one disk that are not mountable. Same behavior is observed on several machines. Imgburn has no problems making another copy from the unmountable .ISO file. The contents of the disk seem pretty unremarkable, a couple of sub directories and a few dozen files, mostly video. 

[LIGHTNING UK!]

Post the disc info of that disc when you’re in Read mode please.