A Windows 98 & ME forum. Win98banter

If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below.

Go Back   Home » Win98banter forum » Windows 98 » Disk Drives
Site Map Home Authors List Search Today's Posts Mark Forums Read Web Partners

Starting Position of a Data CD Disk



 
 
Thread Tools Display Modes
  #1  
Old February 27th 06, 02:38 PM posted to microsoft.public.win98.disks.general
external usenet poster
 
Posts: n/a
Default Starting Position of a Data CD Disk

Hi,

I have been told that a data cd (also audio cd) is
first "read" from the middle track. Another person told me
that it is first "read" from the inside track. I always thought
it was first read from the outside (near the edge) track.

Can someone, who really knows, tell me where the
first "reading" (when you insert a CD) takes place?

Thanks in advance, Brad

Before you type your password, credit card number, etc.,
be sure there is no active key logger (spyware) in your PC.

  #2  
Old February 27th 06, 11:12 PM posted to microsoft.public.win98.disks.general
external usenet poster
 
Posts: n/a
Default Starting Position of a Data CD Disk

http://www.osta.org/technology/cdqa2.htm

What is the Orange Book?
Orange Book is the set of specifications created by Philips and Sony to
define the optical signal characteristics, physical arrangement, writing
methods and testing conditions for CD-R (Orange Book Part II) and CD-RW
(Orange Book Part III) discs. First released in 1990, Orange Book originally
dealt with only single speed CD-R recording but, with rapid advances since
made in hardware and media technology, the specification grew to include
CD-RW in 1996. Higher writing speeds continue to be incorporated as the
industry evolves.

What are the different sections of CD-R and CD-RW discs?
Orange Book organizes CD-R and CD-RW discs into various sections serving
distinct purposes. The Information Area is most fundamental and consists of
a shallow spiral groove (pregroove) extending from the discs' inside to
outside diameter. Encoded in the structure of this pregroove are speed
control and Absolute Time In Pregroove (ATIP) time code information as well
as other parameters critical for recorders to correctly write a disc.
Several regions within this pregroove are reserved exclusively for recorder
use.

The first is the Power Calibration Area (PCA), located in the inner portion
of the disc, which is employed while determining the correct power level for
the writing laser. Due to physical and practical design limitations on
rotational velocity it is, generally speaking, not possible to conduct power
calibrations at the inner diameter of the disc at speeds above 16x. A
process of extrapolation is therefore used to determine suitable writing
power for those higher speeds. Recently, Orange Book has designated the
addition of another PCA located in the Lead-Out Area at the outer portion of
the disc to provide the space necessary to conduct actual high speed write
power calibrations.

Following the first PCA is the Program Memory Area (PMA) which is used as
intermediate storage to record track information for all sessions written to
the disc. Typically, the PMA is first followed by the Lead-In Area,
containing table of contents information, followed by the Program Area which
holds the written data tracks and finally the Lead-Out Area which indicates
to a reading device that the end of the data has been reached.



--
-
Adaware http://www.lavasoft.de
spybot http://security.kolla.de
AVG free antivirus http://www.grisoft.com
Etrust/Vet/CA.online Antivirus scan
http://www3.ca.com/securityadvisor/virusinfo/scan.aspx
Panda online AntiVirus scan http://www.activescan.com
Panda online AntiSpyware Scan
http://www.pandasoftware.com/virus_info/spyware/test/
Catalog of removal tools (1)
http://www.pandasoftware.com/download/utilities/
Catalog of removal tools (2)
http://www3.ca.com/securityadvisor/n...aspx?CID=40387
Trouble Shooting guide to Windows http://mvps.org/winhelp2002/
Blocking Unwanted Parasites with a Hosts file
http://mvps.org/winhelp2002/hosts.htm
links provided as a courtesy, read all instructions on the pages before
use
Grateful thanks to the authors/webmasters
_
"Brad" wrote in message
...
Hi,

I have been told that a data cd (also audio cd) is
first "read" from the middle track. Another person told me
that it is first "read" from the inside track. I always thought
it was first read from the outside (near the edge) track.

Can someone, who really knows, tell me where the
first "reading" (when you insert a CD) takes place?

Thanks in advance, Brad

Before you type your password, credit card number, etc.,
be sure there is no active key logger (spyware) in your PC.



 




Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
SCANDISK on 6GB drive producing Errors at 2.09GB to end. Jerry Disk Drives 15 July 21st 05 07:00 PM
No 98SE 'AutoScan' options Ben Myers General 97 February 16th 05 08:35 PM
what is 'disk imaging'? Vic General 5 February 1st 05 02:16 PM
MBR switch on FDISK jt3 General 30 June 21st 04 08:56 PM
Windows Me will not boot Martinreply Software & Applications 7 June 3rd 04 06:21 AM


All times are GMT +1. The time now is 04:01 PM.


Powered by vBulletin® Version 3.6.4
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Copyright ©2004-2024 Win98banter.
The comments are property of their posters.