Choosing a Mac Only or Mac & PC Disc
You can make a data disc that is usable only on Macintosh computers, or usable on both Macintosh and Windows computers.
What Is a Mac Only Data Disc?
A Macintosh only disc is a data disc that contains Macintosh data and is usable only on a Macintosh computer.
What Is a Mac & PC Disc?
A Mac & PC disc is a cross-platform data disc that contains Macintosh and Windows data, and is usable on either operating system. Macintosh data will also be visible to Windows users.
Note: For information about making an advanced cross-platform discs, see Overview of Making a Custom Hybrid Disc.
To choose a Mac Only or Mac & PC data disc:
1In the Data tab, click the Disc Settings button (or the disc title).
The Disc Settings drawer opens.
2 In the Disc Settings drawer, choose whether you want the final disc to be usable by Macintosh computers only, or also usable by Windows computers:
For Macintosh only, select the Mac Only option.
For Macintosh and Windows, select Mac & PC option.

See Also:

Changing Data Disc Settings
Adding Files or Folders to a Data Disc
Working with Files and Folders in a Data Disc
What is a Data Disc?
Starting a Data Disc
Recording a Data Disc