When to use cd extra, Differences between the two methods, When to use cd extra 7-5 – EXP Computer EXP CD-Rewriter Bundled S_W User Manual
Page 61: Differences between the two methods 7-5

7-5
Combining Data And Audio on a CD
Adaptec Easy CD Creator Standard Edition
Stock Number: 511446-00, Rev. A
Page: 7-5
Print Spec Number: 496513-00
Inside Text: 496512-00
Current Date: 5/8/98
First Draft
When to Use CD Extra
Unlike Mixed-Mode, a CD Extra disc contains two sessions in which
the first session contains audio and the second data. Home or car CD
players play the tracks in the first session (the audio), but will never
read beyond the first session, so the data track is never played.
Also, most current generation CD-ROM drives support multises-
sion—meaning that they read the last session on a CD first, so it
finds the data track. The application can then be used to play back
the audio that is in the first session.
Some additional features of CD Extra are defined under the Blue
Book standard (see Glossary). However, these features are not neces-
sary to create a CD that performs as described above on multises-
sion CD-ROM drives.
Note:
Only multisession CD-ROM drives can read the data
portion of CD Extra discs.
Differences Between the Two Methods
The following table summarizes the major differences between the
two methods for combining data and audio on a single CD.
Method
Data
Audio
Number of
Sessions
Limitations
Mixed-Mode
First track;
CD-ROM or
CD-ROM XA
format
Second and
subsequent
tracks
One
Not recommended
for home or car CD
players.
CD Extra
Second
session;
CD-ROM XA
format
One or more
tracks in the
first session
Two
(multisession)
Multisession
CD-ROM drive
required to read the
data track.