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SENOTE: A reader's comment/correction form is provided with thisdocument. Please address comments to :SEGA of America, Inc., Developer Technical Support (att. Evelyn Merritt)
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(11/2/94- 002)

SEGA

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denti
alTM

CD
Development Tool
Description FileDoc. # ST-211-110494© 1994 SEGA. All Rights Reserved.

nti
alREADER CORRECTION/COMMENT SHEETKeep us updated!
If you should come across any incorrect or outdated information while reading through the attacheddocument, or come up with any questions or comments, please let us know so that we can make therequired changes in subsequent revisions. Simply fill out all information below and return this form tothe Developer Technical Support Manager at the address below. Please make more copies of this form if
more space is needed. Thank you.
General Information:

Phone

Document number
Document namedeYour Name

DateST-211-110494

CD Development Tool Description FileCorrections:Correction

nfipg. #GACoChpt.

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Questions/comments:

Fax:

Where to send your corrections:(415) 802-3963
Attn: Manager,
Developer Technical Support

Mail:

SEGA OF AMERICA
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Redwood City, CA 94065

dential**************************************************************************************•readme.doc type
: CD development tool description file
•File code name
: MANBINCD.DOC•Target driver code name
: BINCD•Target driver name
: CD development tools•Version:•Programmer:•Programmed date
: 10/25/94•Other message: None**************************************************************************************
1. CD Development Tools
Be sure to use the current (or a later) distribution version of the CD development tools.
Install these tools into the directory equivalent to the software library<SATURN¥SEGABIN¥BINCD>.

GACo

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2. VCDEMU.EXE (Version 1.72)
2.1 Modification from version 1.5x to version 1.70
Version 1.70 implements multi-index and scan replay. (Scan play is possible only inreal-time emulation mode.)
2.2 Modification from Version 1.70 to Version 1.71
The bug fix in opening and closing the CD tray.
2.3 Modification from Version 1.71 to Version 1.72
Version 1.72 corrects the problem that caused the wrong file to be obtained during
file retrieval in direct DOS mode. This version also corrects the problem that causedline number at a the bottom right of the screeen to be displayed with a minus symbol.
2.4 Limitations
The current version does not support the file interleaving at the direct DOS-file access.
2.5 Caution
To operate VCDEMU.EXE Version 1.7x or later, replace the ROM on the virtual CD
board with Version 3.2.

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3. VCDPRE.EXE, VCDBUILD.EXE (Version 3.03)
3.1 Modifications from version 2.11 to Version 2.16
• Always set the directory record at the beginning of the sector when the number offiles is large and the directory file extends over multiple sectors.
• The processing stops when a duplicate file name is detected.
• The problem that occurred during directory configuration was corrected.
• The processing speed increased to two to six times faster.
3.2 Modifications from version 2.16 to version 3.02
• Version 3.02 became the DOS extender (DOS/4G) version and is able to check theoperation of up to about 10,000 files (in computers equipped with 8 megabytes ofmemory).

CD Development Tool Description File1ntial• The error in the directory record position was corrected.
• The shift in the TOC position of the audio data in the CDDA track was corrected.
3.3 Modification from Version 3.02 to Version 3.03
• The problem in the directory pass table was corrrected.
3.4 Modification from Version 3.03 to Version 3.04
• Version 3.04 corrects the file position problem that occurred when the directory wasdefined after track specification.
3.5 Caution
In version 3.xx (2.xx) , the syntax of the script file is different from the syntax used inversions 1.xx. Users of version 1.xx must change the script file. For details, refer tothe script description example.

de4. VCDUTL.EXE (Version 1.00)
VCDUTL.EXE is the tool that updates some of the image files.

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5. VCDMKTOC.EXE (Version 1.23)
VCDMKTOC.EXE is the tool that generates a TOC information file for write-once CDs.
(This tool was upgraded with corresponding to the upgrading and debugging of theVCDPRE.EXE and VCDBUILD.EXE version.)
6. SWAP.EXE (Version 1.00)
SWAP.EXE is an endian conversion program for CD-DA data.

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7. SEGACDW.EXE (Version 1.00, Release 1.00)
SEGACDW.EXE is CD writer commands.

8. Script Description Examples (EXSAMPLE.SCR, JVC.SCR, BRTMPFS.SCR)
This is an example of the new script file for VCDPRE version 2.xx. Refer to thisexample during script modification.

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The script files (JVC.SCR and BTSMPFS.SCR) that were provided in the software
library were changed.
Other: Replacement of EPROM (version 3.2) in virtual CD interface board
This revision corrects the problem that prevented CD-DA data on the virtual
CD from being played in multiplayer mode.
****************************** end of file ******************************

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Translator’s Notes

1. In 3.1, the following item is listed twice:• The tool was modified so that processing stops when a duplicate file name isdetected.

2