iTunes 2 uses a hybrid Mac OS Extended (HFS Plus) and ISO 9660 format when it burns an MP3 CD. This means that when you use the CD with a Macintosh computer, the disc will appear as a Mac OS Extended volume. When you use the CD with a non-Macintosh computer or an MP3 disc player, it will appear as an ISO 9660 disc.
For information on how to create an MP3 CD in iTunes 2, see technical document 60924 "
iTunes 2: How to Burn an MP3 CD".
About the ISO 9660 standard
iTunes burns MP3 discs using the ISO 9660 level 2 standard and the Joliet filename extension to that standard. ISO 9660 level 2 allows 32-character filenames that use uppercase Roman letters (A to Z), the numbers 0 to 9, and an underscore. Joliet is an extension to ISO 9660 that allows filenames to use 64 Unicode characters.
Important: Songs with filenames that use non-Roman characters may only appear as a number: "__.001.MP3", for example.
Notes1. If you create an MP3 CD in the Finder and drag MP3 files to that disc, the Finder creates an ISO 9660 disc. It does not create a hybrid Mac OS Extended and ISO 9660 disc.
2. An MP3 CD will only appear in iTunes' Source list if it was created with iTunes 2. MP3 CDs created with another application or device will not appear in the Source list, but will appear on the desktop as a data disc.