How to Burn CDs Directly in Mac OS 9 Finder

Starting with the release of Mac OS 9.1 and the integration of Apple's Disc Burner software, Macintosh users could burn data and audio compact discs natively within the Finder without third-party utilities. By treating blank optical media as temporary desktop volumes, the operating system streamlined the authoring process, allowing users to prepare, arrange, and write files directly using basic drag-and-drop actions.

Preparing the Blank Disc

  1. Insert Media: Place a blank CD-R or CD-RW into a compatible internal or external CD burner.
  2. Choose Format: A dialog box immediately appears asking to prepare the disc. Enter a name for the disc and select the desired format from the drop-down menu:
    • Standard (HFS+/ISO 9660): For general data storage compatible with Macs and PCs.
    • Audio CD: For creating standard Red Book audio discs playable in standalone CD players.
  3. Mount the Disc: Click the "Prepare" button. A new CD icon featuring a burn symbol appears directly on the desktop.

Creating a Data CD

  1. Stage Files: Double-click the mounted CD icon to open its Finder window.
  2. Add Content: Drag and drop the documents, applications, or folders you want to burn into the window. Because the files are merely queued for writing, Finder places aliases or temporary cache references on the disc without immediately writing them to the physical media.
  3. Organize: Arrange files into folders or sort them as desired. The directory layout displayed in the window reflects the final structure on the burned disc.

Creating an Audio CD

  1. Verify File Types: Ensure the source tracks are uncompressed AIFF or WAV audio files. Mac OS 9's Finder authoring cannot directly decode MP3 files into Red Book audio without using iTunes.
  2. Order Tracks: Drag the audio files into the opened disc window.
  3. Set Track Sequence: Rename or arrange the files alphabetically or numerically (e.g., "01 - Track Name", "02 - Track Name") to control the playback order on standard audio equipment.

Executing the Burn Process

  1. Initiate Burning: Once the staging window contains all required files, initiate the write process using one of three methods:
    • Select the CD icon and navigate to the menu bar, choosing Special > Burn CD...
    • Drag the CD icon toward the Trash, which dynamically transforms into a yellow-and-black Burn icon.
    • Click the small Burn button located in the upper-right corner of the disc window.
  2. Select Speed: A confirmation dialog appears displaying the disc details. Select the desired write speed from the options supported by the drive and the media.
  3. Finalize: Click Burn. A progress bar tracks the preparation, encoding, writing, and verification phases. Upon completion, the disc finalizes and mounts as a standard read-only CD.