diff --git a/doc/glossary.texi b/doc/glossary.texi
index 49aacd5c..b61a6068 100644
--- a/doc/glossary.texi
+++ b/doc/glossary.texi
@@ -6,17 +6,23 @@ See also @uref{http://www.dvdrhelp.com/glossary}.
 @cindex ASPI
 See @acronym{Win32 ASPI}
 
+@item ATA
+
+Advanced Technology Attachment (ATA). The same things as IDE.
+
 @item ATAPI
 
-Advanced Technology (AT) Attachment Packet Interface. An interface to
-support CD Drives and DVD Drives using the computers current IDE
-connections.  This is in contrast say to the SCSI protocol.
+Advanced Technology Attachment (ATA) Packet Interface. The interface
+provides a mechanism for transferring and executing SCSI CDBs on IDE
+CD Drives and DVD Drives.
 
 IDE (also called ATA) was originally designed for hard drives only,
 but with help of ATAPI it is possible to connect other devices, in
 particular CD-ROMS to the IDE/EIDE connections.
 
-Many ATAPI CD-ROM drives understand a subset of MMC commands. 
+The ATAPI CD-ROM drives understand a subset of MMC commands. In
+particular multi-initiator commands are neither needed nor deviced for
+ATAPI devices.
 
 @item BIN/CUE
 
@@ -105,6 +111,12 @@ translators. But also a CD-I player can also read CD-XA discs even if
 its own `Green Book' file system only resembles ISO 9660 and isn't
 fully compatible. 
 
+@item Command Packet
+@cindex Command Packet
+
+The data structure that is used to issue an ATAPI command. The same
+thing as a SCSI Command Descriptor Block (CDB).
+
 @item FSF
 @cindex FSF
 
@@ -115,6 +127,12 @@ Free Software Foundation, @uref{http://www.fsf.org/}
 
 @acronym{GNU} is not @acronym{UNIX}, @uref{http://www.gnu.org/}
 
+@item IDE
+
+Integrated Drive Electronics. This is a commonly used interface for
+hard disk drives and CD-ROM drives. It is less expensive than SCSI,
+but offers slightly less in terms of performance.
+
 @item ISO
 @cindex ISO
 
@@ -227,6 +245,12 @@ interfaces (originally developed at Apple Computer) that allow
 personal computers to communicate with peripheral hardware such as
 CD-ROM drives, disk drives, printers, etc.
 
+@item SCSI CDB
+@cindex SCSI CDB
+
+SCSI Command Descriptor Block. The data structure that is used to
+issue a SCSI command. 
+
 @item SCSI Pass Through Interface.
 @cindex SCSI Pass Through Interface.
 
diff --git a/doc/libcdio.texi b/doc/libcdio.texi
index 4ccb6093..60ec07ea 100644
--- a/doc/libcdio.texi
+++ b/doc/libcdio.texi
@@ -46,7 +46,7 @@ development.''
 
 @titlepage
 @title GNU libcdio library
-@subtitle $Id: libcdio.texi,v 1.39 2005/02/05 04:25:14 rocky Exp $
+@subtitle $Id: libcdio.texi,v 1.40 2005/02/12 02:04:34 rocky Exp $
 @author Rocky Bernstein et al.
 @page
 
@@ -1854,8 +1854,8 @@ There seems to be a fascination with the number of bytes a command
 takes in the MMC-specification world. (Size matters?) So often the
 name of an operation will have a suffix with the number of bytes of
 the command (actually in MMC jargon this is called a ``cdb''
-@cindex cdb (Command Descriptor Buffer)
-or command descriptor buffer). So for example there is a 6-byte ``MODE
+@cindex cdb (Command Descriptor Block)
+or command descriptor block). So for example there is a 6-byte ``MODE
 SELECT'' often called ``MODE SELECT 6'' and a 10-byte ``MODE SELECT''
 often called ``MODE SELECT 10''. Presumably the 6-byte command came
 first and it was discovered that there was some deficiency causing the