1

(23 replies, posted in General discussion)

LoStraniero91 wrote:

http://redump.org/disc/63292/

The Lite-On SOHD-167T managed to read sector 4953, bringing the total error count to 960. I think that's the max it could do. I tried re-reading the sectors "before" the good ones 50 times and it failed.

960 is correct for that variation of LaserLock. Bare in mind that you'll have to reread the "lone" error sectors in scrambled mode as they are soft errors that are no longer being replaced with 0x55.

2

(2,319 replies, posted in General discussion)

sarami wrote:

Uploaded: http://www.mediafire.com/file/eq80y20l9 … st.7z/file
- added: 0xF1 opcode for ASUS BW-16D1HT 3.02

Only 1 sector is overread if combined offset is plus, so offset +588 or more has not supported yet.

Thanks! Tested and this seems to work great.

3

(2,319 replies, posted in General discussion)

sarami wrote:

1. execute ASUS_ODD_FW_Changer_(Modified)
2-1. select DE_ASUS_BC-12D2HT_3.00.bin => Updating Failure #4.
2-2. ASUS-BC-12D2HT-3.01-WM00900-211711151926 => Updating Failure #4.
2-3. select DE_ASUS_BW-16D1HT_3.01.bin => Updating Failure #5.
2-4. select DE_ASUS_BW-16D1HT_3.02.bin => Updating Failure #5.

In that case first crossflash ASUS-BW-16D1HT-3.10-WM01601-211901041014.bin and then flash desired firmware.

4

(2,319 replies, posted in General discussion)

sarami wrote:

My drive is BC-12D2HT (FW:3.11). Do you know how to downglade the FW?

Use a custom flasher (info can be found on the MakeMKV forums) to flash the BC-12D2HT MK firmware (also found on the MakeMKV forums, custom firmware pack). That will enable firmware downgrading. Afterwards, flash the older firmware (crossflashing to the BW-16D1HT 3.02 DE firmware should work fine). Let me know if you have trouble finding anything.

5

(2,319 replies, posted in General discussion)

sarami wrote:

I tried it.
1. Read LBA 0 of a disc with BEh and cdda flag on ASUS Blu-Ray drive. My drive support BEh scrambled reading.
2. Set and send command {0xf1, 0x06, 0, 0, 0, 0, 0, 0, 0x0b, 00}
3. Returned error [Key-Asc-Ascq: 05-24-00 = ILLEGAL_REQUEST - INVALID FIELD IN CDB]

I have investigated further and the command works on the 3.02 firmware for the ASUS BW-16D1HT but fails on 3.10MK. Try downgrading the firmware and it should work.

6

(2,319 replies, posted in General discussion)

sarami wrote:
RibShark wrote:

It is possible to read into the lead-out (~13 sectors or so) on the same Blu-Ray Drives that support BEh (READ CD) with the CD-DA flag by using the vendor command to read into the cache. The command is as follows:

Which vendor supports this command? Where did you get this info? Is there a specification like ecma, t10.org etc?

I reverse engineered the firmware myself; as I said in my previous post, it is supported by the same LG/ASUS Blu-Ray drives that support BEh scrambled reading. There is no specification.

7

(2,319 replies, posted in General discussion)

It is possible to read into the lead-out (~13 sectors or so) on the same Blu-Ray Drives that support BEh (READ CD) with the CD-DA flag by using the vendor command to read into the cache. The command is as follows:

F1 06 xx xx xx xx yy yy yy yy
xx - address to read
yy - length of data to return

Whenever reading a sector of the drive with BEh, that sector and the sectors following it get put into the cache at location 0x00000000. Each sector in the cache is 0xB00 in length. By reading the last sector of the disc, the following lead out sectors will get put into the cache starting at the address 0x00000B00, allowing them to be read with the command. The data returned by the command is formatted as follows (presuming the sector was originally read with the BEh command with CD-DA flag, 001b subchannel bits, and C2 error reporting; I haven't tested with other flags):

0x000-0x92F - Main Channel (Scrambled)
0x930-0x98F - P-W Subchannel
0x990-0x99F - Q Subchannel
0x9A0-0x9A3 - (unknown)
0x9A4-0xAC9 - C2 Error Bits
0xACA-0xB00 - (unknown)

I am not sure what the unknowns are, but this should be enough to allow for full dumping of any CD with these drives: since they could already read into the lead-in and dump discs with a negative combined offset, this method of reading into the lead-out should allow discs with a positive combined offset to be dumped.

@Sarami: Please could you implement this into DiscImageCreator, it would enable dumping for a lot more people who lack Plextors!

8

(54 replies, posted in General discussion)

New discovery! Plextor 716A at 4x read speed was suddenly able to easily read the "difficult" LaserLock sectors for both me and Nexy.

9

(2,319 replies, posted in General discussion)

Some early PAL and NTSC-U/C PS1 games have a different licensing string

          Licensed  by          Sony Computer Entertainment(Europe)

or

          Licensed  by          Sony Computer Entertainment of America

which is definitely worth noting if you need to detect regions. It shouldn't matter though, since libcrypt probably isn't on any of these early PAL discs.

A redump.org API in general would be absolutely great for emulators, ROM Managers, and many other uses. Please implement one!

11

(4 replies, posted in Fixes & additions)

http://redump.org/disc/21081/
Ringcodes are missing tabs, and more importantly, the layer 0 mastering code has one digit too many.

12

(1 replies, posted in General discussion)

A lot of discs in the DB (particularly for PC) are compilation discs containing many games, or coverdiscs. For people, such as myself, who enjoy researching the differences in various released versions of games, being able to search for discs with certain terms in their "contents" field would be very helpful. Is there any way to do this?

13

(2 replies, posted in Guests & account requests)

Unfortunately OEM Plextor's do not support the 0xD8 command that is required for Redump's methods. You can see a list of supported drives here.

14

(2 replies, posted in Guests & account requests)

Bump, KailoKyra has a lot of discs which could be very valuable to redump! Please create an account!

15

(24 replies, posted in Guests & account requests)

iR0b0t wrote:

> Paranoia

A reminder that redump has never, and will never, breach any copyright laws, and any such activities are conducted by individuals and not this site as a whole. If he is a lawyer, it means nothing, because this site is not infringing on any rights or breaking any laws.

iR0b0t wrote:

Sure! I am just waiting for the confirmation that the new format is being accepted by emu and what not.

I've submitted feature requests to the two main DC emulators in active development (redream/reicast-libretro). Inolen (the redream developer) says he will add support if "people want it". It's more likely to be implemented when we fully switch over.

Emulators, both software and Optical Drive Emulators that replace the disc drive in a real Dreamcast, do not currently support Redump's GDI dumps as the format was simply not designed to accomodate for the way we store our dumps. It's important that for our dumps to be useful, at all, that we store it in a more appropriate format that emulator developers will be willing to implement.

18

(54 replies, posted in General discussion)

Jackal wrote:
RibShark wrote:

Optiarc AD-7170S does not appear to be able to read every sector. When attempting to dump http://redump.org/disc/43106/, the drive fails to read sectors 2178-2184. So not all Optiarc drives are good for dumping physical ring protection.

Did you use cdarchive to read backwards with enough read retries?

How many read retries are required on average?

19

(54 replies, posted in General discussion)

Optiarc AD-7170S does not appear to be able to read every sector. When attempting to dump http://redump.org/disc/43106/, the drive fails to read sectors 2178-2184. So not all Optiarc drives are good for dumping physical ring protection.

20

(2,319 replies, posted in General discussion)

Latest releases (20181022/20181020) are missing from github.

Additionally: ringcodes that do not contain SID codes are not necessarily bad (if the disc itself does not have the codes on it, which a few do not), so should not automatically have yellow status.

22

(7 replies, posted in General discussion)

Thanks for the tips! Someone posted a PX-W4824TA on eBay for £20 (apparently in working order apart from a broken rubber drive belt, which I should be able to either fix or just open with a paperclip), and the SATA to IDE adapter recommended by ajshell.

23

(7 replies, posted in General discussion)

Still looking for a drive. Could anyone from Norway act as an intemediary and help me get this drive? I would pay for the drive and the shipping costs to the UK.

24

(7 replies, posted in General discussion)

Hi! I would like to obtain a Plextor drive in order to dump various CDs that I have and CDs that I will obtain in the future (I will probably not be able to dump many until late December however). I live in the UK. What would be the cheapest way of obtaining a drive, and as the drive will probably be IDE, would an IDE to SATA converter work to connect it to my computer?

On the dumping guides, Disc Image Creator is used to dump CDs. Is a Plextor drive absolutely required for this or is there some other way to dump discs suitable for redump with other drives.

Additionally, I noticed that for all multi-track CDs, each track is in a separate .bin file. I have not found a tool that can dump CDs in this way, and I would like to be able to.