From the Mac Help:
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Mac Help
Index
Types of recordable CD and DVD media
If your computer has an internal or external recordable optical drive supported by Apple, you can "burn" or record your favorite music, applications, documents, digital photos and video, and other digital files to recordable CD and DVD discs. You can create your own music CDs and play them on a standard audio player, or create DVDs with movies and slideshows and play them on a DVD player.
There are several types of recordable CD and DVD media:
DVD-R discs hold about 4.7 GB of information. You can burn files on a DVD-R disc using the Apple SuperDrive. DVD-R discs are not reusable; you can burn files on them only once.
DVD+R is an alternate DVD Recordable write-once format. Some DVD drives or applications may not support recording to this disc format.
DVD-RW discs hold about 4.7 GB of information on each side. If you have an Apple SuperDrive, you can read information on these discs, but you can't burn files on them using Mac OS X. DVD-RW discs are reusable: you can burn files on them, erase them, and then burn again (if you have an application that is compatible).
DVD+RW is an alternate DVD ReWritable format intended to replace the capabilities of DVD-RW and DVD-RAM and provide higher compatibility with set-top players. Some DVD drives or applications may not support recording to this disc format.
CD-RW discs come in normal and high-speed formats. You can burn files on CD-RW discs using the Combo drive (or another supported CD burner). CD-RW discs are reusable: you can burn files on them, erase them, and then burn again.
CD-R discs come in two types. One holds 74 minutes of audio, or about 650 MB of information. The other holds 80 minutes of audio, or about 700 MB of information. You can burn CD-R discs using the Combo drive (or another supported CD burner).
For recording audio CDs, it is best to use CD-R discs because most standard audio CD players cannot read CD-RW discs. For longer-term storage and reliability, use CD-R discs.
You can't burn anything on a CD-ROM or DVD-ROM disc.
See also
disks
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it seems Dual Layer isn't known in Tiger-Finder. Before I make a coaster, has anyone made one in the Finer, or do I need Toast for this?
Thanks.
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