Dreamcast/NAOMI GD-ROM dumping instructions

[Rocknroms]

If everything went well, the dump is ready to be submitted.

I think this info should be added because someone could not understand if ice reports errors or not:

Good dump

Code: Select all

---------------------------------
hd.bin
---------------------------------
Accessing                       : ok
Seeking 1st valid Mode1 sector  : ok
 LBA found                      : 44991
 @file offset                   : $00000840
 Scrambled                      : TRUE
Seeking LBA 45000               : ok
 Combined offset (samples)      : 5820
Parsing IP.BIN                  : ok
 Writting 'ip.txt'              : ok
Parsing TOC                     : ok
 TOC entries                    : 4
 Writting 'redump.cue'          : ok
---------------------------------
03  Mode1   45000  549149  504150 ok
---------------------------------
done

Bad dump

Code: Select all

---------------------------------
hd.bin
---------------------------------
Accessing                       : ok
Seeking 1st valid Mode1 sector  : ok
 LBA found                      : 44991
 @file offset                   : $00000840
 Scrambled                      : TRUE
Seeking LBA 45000               : ok
 Combined offset (samples)      : 5820
Parsing IP.BIN                  : ok
 Writting 'ip.txt'              : ok
Parsing TOC                     : ok
 TOC entries                    : 4
 Writting 'redump.cue'          : ok
---------------------------------
03  Mode1   45000  549149  504150 ok (46)
---------------------------------
done

This is an example with a "one track" high density disc, if you got something within "(...)" after a track "ok", those are errors so that track is bad!

[iR0b0t]

ICE output is also needed to determine the high density area write offset, as some discs can have different write offsets on LDA & HDA !!!

here is an example https://redump.info/disc/16727

[iR0b0t]

so, for everybody using Lite-On SOHD-167T

be warned to NOT to use values OVER 440000 when extracting ranges partially, try to stay below 400000
(the firmware has a bug)

you may use extractions from 44990-400000 and then 400001-549150, then it will be fine.

[gorelord4e]

I have been dumping many games using the NEC CDR-1901A drive lately, and to my surprice it is working byfar the best compared to all other drives I have tested, dumping starts right away always.. and mostly I can dump scratched games on 8x speed and completely new discs at 16x speed.. my drive that I have suffers from a tiny mechanical failure though (Needs to put the disc in many times before it loads it up), so I have ordered a new one aswell, these drives are beginning to be realy old my drive that I have right know is from 1998.. they are very cheap on ebay in general aswell which is a big + ..

[BoboPJ64]

Dreamcast HIT-0400 Jap Broadband tutorial dumping:
/viewtopic.php?t=6142 … -by-gdrom/


Note: GD-ROMs with a single high density track only, Track02 still needs to be dumped with a standard drive !!!

[Rocknroms]

As I posted in the other thread...

Another solution could be the SD adapter and tools to dump HD area.
If someone wants to try something, here are a pair of links
http://f17.aaa.livedoor.jp/~takotako/dc … php#sdcard ---> How to and tools (Japanese)
http://item.taobao.com/item.htm?id=7818275499 ---> Chinese seller for a ready to use adapter
Tolls can dump full disc as I understand so if it dumps it raw I think it could be parsed by ICE. Someone with knowledge could try to edit source code of that tool to dump all HD area in raw audio.

[TailS_tff]

I have this adapter !
I dump several game with it, all except 2 games (for now) are identical to your Db.. But I suspect bad sectors into SD card.

[Rocknroms]

I have this adapter !
I dump several game with it, all except 2 games (for now) are identical to your Db

Both data and audio tracks?
So it takes correct gaps?
You don't have to fix anything manually to get same checksum of our DB?
Can you provide infos about the games that don't check DB?

[TailS_tff]

The SD method can rip first and second session tracks, both audio and data.
(Data in bin, audio in raw)
All games match, except floigan brother and SonicAdv2 : I try to dump floigan about 8 times, always the same hash (on different sd card) and the game was purshased on 2008 and factory sealed.
Otherwise nothing have to be manually fixed to match with your DB (for others games I've try).

[Jackal]

If those 2 aren't matching they are most likely different versions?