Is there an easy way to copy an audio CD in Mac OS X?

Solution 1:

You can do this with Burn, and free and open source tool for Mac:

Already have discs you like to reproduce? Don't worry, Burn can help you. Burn can copy discs or use disk images to recreate your discs. With one drive Burn still will be able to copy a disc, by temporary saving the disc.

Not exactly a "single-click", but I can assure you it's very simple to use.

Solution 2:

When copying audio CDs I highly recommend ripping to hard disk first. The reason is quality control - ripping audio to disk allows your application to use error detection & correction mechanisms that a straight disc-to-disc copy won't perform. Additionally, it gives you a chance to play the tracks and make sure the rip is correct. Especially for scratched CDs, you really want a secure ripping program to help you get the best copy possible.

In iTunes, rip to Apple Lossless or AIFF or WAV formats for best results (other formats encode the data in a lossy format that loses quality).

Other ripper programs include Roxio Toast, Max from sbooth.org, and the open-source Burn that other answers have mentioned. OSX's built-in Disk Utility is not recommended for copying audio CDs. If you want EAC-like quality (perfect rips of even the most scratched discs), Max seems to be highly recommended.