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Small modifications.

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rocky
2004-02-25 02:04:22 +00:00
parent baf7565300
commit b590d1f2e4
1 changed files with 26 additions and 24 deletions
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doc/libcdio.texi
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@@ -2,7 +2,7 @@
@c %**start of header
@setfilename libcdio.info
@settitle The GNU Compact Disck Input and Control library
@settitle The GNU Compact Disc Input and Control library
@setchapternewpage on
@c %**end of header
@@ -46,7 +46,7 @@ development.''
@titlepage
@title GNU libcdio library
@subtitle $Id: libcdio.texi,v 1.12 2004/02/22 13:27:18 rocky Exp $
@subtitle $Id: libcdio.texi,v 1.13 2004/02/25 02:04:22 rocky Exp $
@author Rocky Bernstein et al.
@page
@@ -209,8 +209,8 @@ to by the color of the cover on the specification.
@node Red Book
@section Red Book
The first type of CD that was produced was the Compact Disc Digital
Audio (CD-DA) or just plain ``audio CD''. The specification is
commonly called the ``Red Book''. Music CD's are recorded in this
Audio (CD-DA) or just plain ``audio CD''. The specification, ICE 908,
is commonly called the ``Red Book''. Music CD's are recorded in this
format which basically allows for around 74 minutes of audio per disc
and for that information to be split up into tracks. Tracks are broken
up into "sectors" and each sector contains 2,352 bytes. To play one
@@ -221,9 +221,9 @@ routine @code{cdio_read_audio_sector()}.
@node Yellow Book
@section Yellow Book
The CD-ROM specification or the ``Yellow Book'' followed a few years later
and describes the extension of CD's to store computer data,
i.e. CD-ROM (Compact Disk Read Only Memory).
The CD-ROM specification or the ``Yellow Book'' followed a few years
later (Standards ISO/IEC 10149), and describes the extension of CD's
to store computer data, i.e. CD-ROM (Compact Disk Read Only Memory).
The specification in the Yellow Book defines two modes: Mode1 and
Mode2.
@@ -288,27 +288,29 @@ System semantics.
@node Mode1
@subsection Mode1
Mode 1 is the data storage mode used by to store computer
data. The data is laid out in basically the same way as in and audio
CD format, except that the 2,352 bytes of data in each block are
broken down further. 2,048 of these bytes are for "real" data. The
other 304 bytes are used for an additional level of error detecting
and correcting code. This is necessary because data CDs cannot
tolerate the loss of a handful of bits now and then, the way audio
CDs can.
Mode 1 is the data storage mode used by to store computer data. There
are 3 layers of error correction. A Compact Disc using only this format can
hold at most 650 MB. The data is laid out in basically the same way as
in and audio CD format, except that the 2,352 bytes of data in each
block are broken down further. 2,048 of these bytes are for "real"
data. The other 304 bytes are used for an additional level of error
detecting and correcting code. This is necessary because data CDs
cannot tolerate the loss of a handful of bits now and then, the way
audio CDs can.
@node Mode2
@subsection Mode2
Mode 2 data CDs are the same as mode 1 CDs except that the error
detecting and correcting codes are omitted. This is similar to audio
CDs, i.e. the mode 2 format provides a more flexible vehicle for
storing types of data that do not require high data integrity: for
example, graphics and video can use this format. But in contrast to
the Red book standard, different modes can be mixed together; this is
the basis for the extensions to the original data CD standards known
as CD-ROM Extended Architecture, or CD-ROM XA. CD-ROM XA formats
currently in use are CD-I Bridge formats, Photo CD and Video CD plus
Sony's Playstation.
detecting and correcting codes are omitted. So still there are 2
layers of error correction. A Compact Disc using only this mode can
thus hold at most 742 MB. Similar to audio CDs, the mode 2 format
provides a more flexible vehicle for storing types of data that do not
require high data integrity: for example, graphics and video can use
this format. But in contrast to the Red Book standard, different modes
can be mixed together; this is the basis for the extensions to the
original data CD standards known as CD-ROM Extended Architecture, or
CD-ROM XA. CD-ROM XA formats currently in use are CD-I Bridge
formats, Photo CD and Video CD plus Sony's Playstation.
@node White Book
@section White Book