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Posted: **Sat Sep 22, 2018 8:55 pm**

FatArnold wrote:I tried dumping some gd-rom today with my PX-708. Unfortunately I get a segfault as soon as I enable /c2. Without /c2 the dump starts. Happens both on linux and the latest windows release.

Uploaded test version.

F1ReB4LL wrote:DIC dump to the left, old bin-cue dump to the right. And I really don't think these 2 bytes should be zeroed.

How about cdtoimg?

Posted: **Sat Sep 22, 2018 9:21 pm**

I'm going to try dumping that disc with all of the other methods I can find, and then see what sarami has to say.

I finished that data dump. It doesn't match a dump that I made with an older version of DIC

EDIT: setting the drive speed to 4x seems to have fixed it. Yay!

And the dump that I made matches a dump with an older version of DIC.

Posted: **Sun Sep 23, 2018 4:28 am**

sarami wrote:
FatArnold wrote:I tried dumping some gd-rom today with my PX-708. Unfortunately I get a segfault as soon as I enable /c2. Without /c2 the dump starts. Happens both on linux and the latest windows release.
Uploaded test version.

Thank you so much for everything! Tried reading a GD-ROM just now and the dump went just as it should.

However, now it segfaults after the dump. But all the data seem to be dumped correctly

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AppVersion
    x86, AnsiBuild, 20180923 110347
/c2 val1 is omitted. set [4000]
/c2 val2 is omitted. set [0]
/home/rebecca/Desktop/DiscImageCreator_linux_test/4Wheel/ doesn't exist, so create.
CurrentDirectory
    /home/rebecca/Desktop/DiscImageCreator_linux_test
WorkingPath
     Argument: 4Wheel/4Wheel.bin
     FullPath: /home/rebecca/Desktop/DiscImageCreator_linux_test/4Wheel/4Wheel.bin
        Drive: /
    Directory: home/rebecca/Desktop/DiscImageCreator_linux_test/4Wheel/
     Filename: 4Wheel
    Extension: .bin
StartTime: 2018/09/23(Sun) 11:16:05
Set the drive speed: 2822KB/sec
This drive supports [OpCode: 0xd8, SubCode: 0]
This drive supports [OpCode: 0xd8, SubCode: 1]
This drive supports [OpCode: 0xd8, SubCode: 2]
This drive supports [OpCode: 0xd8, SubCode: 8]
Checking SubQ adr (Track) 18/18
Checking SubRtoW (Track) 18/18
Reading DirectoryRecord    1/   1
Set OpCode: 0xd8, SubCode: 8(Raw)
Creating .scm from 45000 to 549151 (LBA) 549150
No C2 errors
Descrambling img (LBA) 504149/504150
Exec /home/rebecca/Desktop/DiscImageCreator_linux_test/./EccEdc_linux.out check /home/rebecca/Desktop/DiscImageCreator_linux_test/4Wheel/4Wheel.img
FILE: /home/rebecca/Desktop/DiscImageCreator_linux_test/4Wheel/4Wheel.img
Checking sectors (LBA) 504149/504149
[NO ERROR] User data vs. ecc/edc match all
Segmentation fault

Logs: https://mega.nz/#!6gAACaYK!AC-o6GHrPiW9 … yJStw7GHsY

Posted: **Sun Sep 23, 2018 10:49 am**

But READ12 (0xa8) can't read it. Perhaps READ CD (0xbe) is also same. It's weird...
Is this a protection? I don't know. Maybe iR0b0t or Jackal or reentrant know it?

I re-checked again with CD Manipulator and Clone CD, it seems that even those tools don't know how to handle this sector properly. Clone CD fills sector 150 with "55" while CD Manipulator fills the same sector with "00". Does that make any sense? Which tool should I trust more?

Would it be helpful to upload a subdump dump?

Posted: **Sun Sep 23, 2018 11:09 am**

By saying sector 150 you mean:
A: Sector with MSF 00:02:00
B: Sector with MSF 00:04:00

Some tools start sectors numbering from 0 and some from 150...
In any way plz upload SCM dump that HAS that faulty sector...

Posted: **Sun Sep 23, 2018 11:25 am**

Is there any command combination that will restart an interrupted run? I got a Address boundary error partway through retrying sectors with c2 errors, and I'd like to tell it to continue testing the sectors noted in the c2Errors file. It looks like you can specify the sectors to retry yourself manually, but it'd be much nicer if it could resume without too much manual intervention.

Posted: **Sun Sep 23, 2018 12:19 pm**

In any way plz upload SCM dump that HAS that faulty sector...

Sorry, the sector 150 I'm referring to is at 00:02:00.

What's the best way to obtain an .scm dump without DIC? Dumping with DIC fails so early that it doesn't create a .scm file. I tried with "cd", "data" and "audio" option.

Posted: **Mon Sep 24, 2018 12:07 am**

Uploaded test. http://www.mediafire.com/file/eq80y20l9 … st.7z/file

fixed: Skipped this error.

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LBA[000000, 0000000]: [F:ReadCDForFileSystem][L:574]
    Opcode: 0xa8
    ScsiStatus: 0x02 = CHECK_CONDITION
    SenseData Key-Asc-Ascq: 03-02-83 = MEDIUM_ERROR - VENDOR UNIQUE ERROR
lpCmd: a8, 00, 00, 00, 00, 00, 00, 00, 00, 01, 00, 00
dwBufSize: 2048

added: support unnamed protection
I created 2 text files. 1st line is comment. 2nd line is file name.
EdcEccErrorProtect.txt (e.g. https://redump.info/disc/45814/ )

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# This is a file to fix the edc/ecc error sector. Please write the file name you want to fix the error
CD.IDX

ReadErrorProtect.txt (e.g. https://redump.info/disc/43270/ )

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# This is a file not to read sector. Please write the file name you want to read skipping
SYSTEM.LSK

To use this file, please use /sf option.

added: support laserlock and proring (needs optiarc drive)
How to dump (almost same CDArchive)
e.g. https://redump.info/disc/30992/
1. dump the disc except the protected file using plextor drive.

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DiscImageCreator.exe cd <driveletter> <filename> <drivespeed> /sf

* DIC detects the protection like this.

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Detected [LASERLOK.IN], from 337 to 10336

2. when dumping finished, eject the disc from plex drive and insert it in optiarc drive.
3. dump the protected file

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DiscImageCreator.exe data <driveletter> <filename> <drivespeed> 337 10338 /sf /sk 76

* CD has a offset, so please specify more +1 or +2 than endlba. (e.g. 10336 -> 10338)
* /sk is below.

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        /sk     Skip sector for physical protect (e.g. proring, LaserLock etc.)
                        val     sector num

4. merge plextor image and optiarc image

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DiscImageCreator.exe merge <plex img> <opti img>

* I don't test yet about other ring protection.

FatArnold wrote:However, now it segfaults after the dump. But all the data seem to be dumped correctly

cue file is missing. Is windows build also same?

Posted: **Mon Sep 24, 2018 12:59 am**

sarami: It's going in a good direction but to speed things up you could also code sector range extraction from those discs. It's way faster to read specific 'n' sectors than entire cd, and merge command that merges single sectors - just like CDArchive does.

celebi:

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========== OpCode[0xd8]: SubCode[0]: Check Drive + CD offset ==========
========== LBA[000000, 0000000]: Main Channel ==========
       +0 +1 +2 +3 +4 +5 +6 +7  +8 +9 +A +B +C +D +E +F
0000 : 5C 7A B9 E3 32 C9 D5 96  DF 2E D8 1C 5A 89 FB 26   \z..2.......Z..&
0010 : C3 5A D1 FB 1C 43 49 F1  F6 C4 46 D3 72 DD E5 99   .Z...CI...F.r...
0020 : 00 FF FF FF FF FF FF FF  00 FF FF FF FF FF FF FF   ................
0030 : FF FF FF 00 01 82 00 61  00 28 00 1E 80 08 60 06   .......a.(....`.
0040 : A8 02 FE 81 80 60 60 28  28 1E 9E 88 68 66 AE AA   .....``((...hf..
0050 : FC 7F 01 E0 00 48 00 36  80 16 E0 0E C8 04 56 83   .....H.6......V.
0060 : 7E E1 E0 48 48 36 B6 96  F6 EE C6 CC 52 D5 FD 9F   ~..HH6......R...
0070 : 01 A8 00 7E 80 20 60 18  28 0A 9E 87 28 62 9E A9   ...~. `.(...(b..
0080 : A8 7E FE A0 40 78 30 22  94 19 AF 4A FC 37 01 D6   .~..@x0"...J.7..

I don't like this lines:
0020 : 00 FF FF FF FF FF FF FF 00 FF FF FF FF FF FF FF ................
0030 : FF FF FF 00 01 82 00 61

D8 reads ok, but 'higher level' read commands fail. So my conclusion is that there's something either with Header or ECC/EDC.
It looks like these devices don't like such patterns?

Posted: **Tue Sep 25, 2018 2:27 pm**

Uploaded test. http://www.mediafire.com/file/eq80y20l9 … st.7z/file

fixed: Skipped this error.

Thanks a lot, with this test version I was able to dump this disk. Interestingly the checksums doesn't match with either CD Manipulator or Clone CD.

And even more interesting is that edcchk hasn't detected an error in sector 150 (00:02:00) and just detected it as Mode 1 data sector.

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