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Rip GDs with cdrom (short explanation )

Dreamcast's profile picture
Published in 
Dreamcast
 · 2 Mar 2018

Rip GDs with |cdrom|( short explanation ):
by YURSOFT

-THIS SYSTEM IS FOR MAKES YOU YOUR BACKUPS. NEVER USE IT TO COPY A RENTED OR BORROWED GAME THAT YOU DO NOT POSSESS. IF YOU DON'T WANT TO FOLLOW THIS RULE, STOP READING FROM HERE.

What you need:

-CDRWIN 3.8 or superior.
-Reader of |cdrom| compatible with reading until 122 minutes.
-TOC of 122 minutes of data in MODE 1.
-TOC of 122 minutes in audio.
-GD Lister 1.6
-GD Fixer 0.9 or GDK
-PararCD
-Extract


NOTES:

-THIS SYSTEM IS FOR MAKES YOU YOUR BACKUPS. NEVER USE IT TO COPY A RENTED OR BORROWED GAME THAT YOU DO NOT POSSESS. IF YOU DON'T WANT TO FOLLOW THIS RULE, STOP READING FROM HERE.

-No drive will read if you put 450000 as the beginning sector.
-The audio cannot be read with the data trap disc, it always fails.
-Don't put the reading speed past 4x if you really want the disc to read well. But if you don't try you never know, right? ;)
-Try to keep to GD as clean as possible.
-The GDs are recorded from bottom to top so don't think that extracting until the 99 minute will get you anywhere, since the 1st_read.bin file is always at the end of the GD in aprox sector 540000.


STEPS:

1º Open up the drive (litteraly take the outer casing apart).

2º Start CDRWIN, put the data trap disc and wait for the drive to stop reading or use pararcd, replace the trap disc with the GD, and extract 1º sector 45000(not 450000)-46000 in MODE 1 2048. Name the resulting iso as TOC.iso

3º Start GDLister and open the TOC.ISO, see what is the structure of the disc (what tracks does it have).

Note: Make sure CDRwin is configured like this, go to the Select Sectors menu to configure:

-Error Recovery: Abort
-Jitter........: Auto
-Read Retry....: 5
-Data Speed....: 4x
-Audio Speed...: 4x

-IF IT HAS AUDIO:

4º Extract from 45000 to the end of the 1º data track in MODE 1 2048. Name this iso Data1.ISO

5º Extract from the beginning of the 2º data track to 549150 in MODE 1 2048. Name this iso Data2.ISO

6º Swap the audio trap disc for the GD, extract from the beginning of the first audio track until the end the last audio tack. Name this iso AUDIO.BIN


-DOESN'T HAVE AUDIO:

4º Extract from 45000-549150 in MODE 1 2048. Name this iso Data.ISO (It usually occupies 984 megs)


STEPS OF EXTRACTION OF THE FILES OF THE IMAGE:

-IF IT HAS AUDIO:

1º Copy the two data isos to the folder which contains extract.exe.
Open GDLister and select TOC.ISO, and write down the LBA where the 2º data track starts and add 150. You must add 150 for this to work!

2º Type this in a command prompt (cmd, dos, whatever you'd like to call it): extract Data1.ISO Data2.ISO (the LBA number from the start of the second data track)+150
Now wait for extract to finish what it's doing.

3º You can delete Data1.iso and Data2.iso if you like (I always save them until I actually finish the job)

-DOESN'T HAVE AUDIO:

1º Copy the data iso to the folder which contains extract.exe.

2º Type this in a command prompt (cmd, dos, whatever you'd like to call it): extract DATOS.ISO
Now wait for extract to finish what it's doing.
You can delete Data1.iso and Data2.iso if you like (I always save them until I actually finish the job)


SEPARATION OF THE AUDIO TRACKS (If it has any)

Open GD Lister 1.6 (important) and open the TOC.ISO. Select the audio tracks and press the extract button. !!!!!!!!!Donde el sector a partir de donde extrajimos las pistas de audio que debería ser el primero sector de la 1º pista de audio que haya!!!!!!!!!!. The sector of the first track should appear upon selection. It should ask you for the name of the iso which contains the audio tracks, select the AUDIO.BIN.

HACK THE EXECUTABLES SO THEY WORK ON NORMAL CDS

So now we have the files, easy right?, now let's hack/fix, well whatever you wanna call this next step:

With GDFIXER 0.9:

-Select the game's executable file, put the LBA value of the beginning point of the 2º track to make the game selfbootable or if you want to use a boot cd leave it at 0, next click on GD HACK, but if it has audio press the one which says AUDIO. When you press GD HACK it should ask you if the game has audio answer according to the case.

If you like to use command line progs (to each his own I say):

If the game has audio type:
cdda executable_name
dahack executable_name LBA
LBA is the where sector begins the part of data of the autoejecutable if it is |bootcd| put 0.

If has not audio put:
hack3 names_executable NumeroSector
NumeroSector is the where sector begins the part of data of the autoejecutable if it is |bootcd| put 0.


Now you engrave the game according to it have selected, if is autoejecutable because it follow the steps that come you with the program that go to use, and if it are for be accustomed with CD key because engrave it with the program that prefered in MODE 1 (important).


Greetings to: |tavi|, Light..., |inetd| , |stormi| , |elrokket| , |dreamchip||IPH, |stuker| , |clark||,... to the whole world XD

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