GD-Rom Dumping Guide (Old)

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Revision as of 07:05, 10 September 2013

Work in progress

Introduction

This guide will help you dump Sega Dreamcast GD-ROMS. With certain drives it's possible to dump the high density area of a GD-ROM disc using the escape eject button. The low density area (the first 2 tracks which are always visible) can be dumped the normal way (without hotswapping) on any drive using the Main CD dumping guide.

Software needed

• dctools
• audio trap disc

Instructions

The high density area (sector 45000-549150) can be dumped as follows:

1) Insert the audio trap disc (a disc with a hacked TOC of 99 mins audio, burn it with CloneCD or Alcohol).

2) Use 'startstop.exe driveletter 1' to stop the drive motor.

3) Use a pin to press the escape eject button, so the tray will eject (or remove the drive cover).. insert the gdrom and gently push the tray back (or put the drive cover back on).

4) Now extract sector 44990 (to be sure that the offset doesn't cut off any data) - 549150 using CDRWin 'Select Sectors' with the following settings: CD Audio (2352), File Format INTEL, Error Recovery Abort, Audio Speed 1x, Read Retry Count 1.

5) When it's done extracting, use 'ice.exe dumpfile.bin 45000' to descramble and split the dump data..

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

If you get any errors during extraction or if your drive fails to read the gdrom disc after swapping, then this most likely means that your drive isn't suitable for dumping gdrom discs. Read the next post to see if your drive which drives are supported/unsupported.

Supported Drives (tested by)

• Samsung TSSTCorp SH-D162D (iR0b0t, Jackal, tossEAC, r09, Rocknroms, nrl_quaker)
• Lite-On SOHD-167T (iR0b0t, Jackal)
• Samsung TSSTCorp SH-D162C (tossEAC)
• Lite-On LH-18A1H (themabus)

Note: If it doesn't work after some retries, then first read ahead a bit (sector 60.000-x) and then (re)try normal range again. Or try to remove the cover.

Unsupported Drives (tested by)

• ASUS CRW-5224A (axisleon)
• ASUS DRW-24B1ST a (Enker)
• LG BD-RE GGW-H20L (Teancum)
• LG CED-8120B (iR0b0t)
• LG GCC4482B (Enker)
• LG GDR-8164B (iR0b0t, Rocknroms)
• LG GSA-H10N (Enker)
• LG GSA-H42L (iR0b0t)
• Lite-On iHAS324-32 B (axisleon)
• Lite-On iHBS112 2 (Enker)
• Lite-On iHDP118 4 (Enker)
• Pioneer DVR-103 (iR0b0t)
• Pioneer DVD-129P (axisleon)
• Pioneer DVR-111 (axisleon)
• Pioneer DVR-216 (axisleon)
• Plextor PX-116A (axisleon)
• Plextor PX-760A (iR0b0t, Rocknroms, Jackal)
• Toshiba SD-M1502 (iR0b0t)
• SONY CRX140S (axisleon)
• SONY CRX230E (nrl_quaker)
• NEC ND-4550A (nrl_quaker)
• TEAC CD-532S (axisleon)
• Toshiba SD-M1502 (iR0b0t)
• TSSTcorp SH-S202J (nrl_quaker)
• HL-DT-ST BD-RE GGW-H20L (Teancum)

NOTE: If you have any supported/unsupported drives, let us know and they will be added to the list!

Forum

For any questions, suggestions or problems please visit the Dreamcast GD-ROM dumping topic in the forum. If you have anything to add to the dumping method or supported drives please share with us your findings.