Adding Macintosh Files to a Custom Hybrid Disc
If you intend to prepare a disc for publishing, it is a good idea to collect the Macintosh data in a temporary partition or volume before adding it to the Custom Hybrid CD.
To add files to a Custom Hybrid CD:
1Make sure the Data content area is displaying the Custom Hybrid CD.
2 In the Data content area, click Select Mac.
The Select Volume dialog box appears.
3 In the Select Volume dialog box, select the volume (or temporary partition) you prepared, then click OK.

See Also:

What Is a Custom Hybrid Disc?
Overview of Making a Custom Hybrid Disc
Preparing Macintosh Files for a Custom Hybrid Disc
Adding Windows Files to a Custom Hybrid Disc