Burning CDs

The detected writer is displayed under Device in the burning dialog. Set the burning speed in Burning Speed.

The following options are offered here:


This option determines how the laser writes a CD. In the DAO (disk at once) mode, the laser is never deactivated as long as the CD is written. This mode is recommended for the creation of audio CDs. However, it is not supported by all CD writers. In the TAO mode (track at one), a separate write process is applied for every individual track. The RAW mode is not used very often, as the writer does not perform any data corrections. The best setting is automatic, as allows K3b to use the most suitable settings.


This function can be used to check if your system supports the selected writing speed. The writing will performed with the laser deactivated to test the system.

On the fly

Burns the desired data without first creating an image file (do not use this feature on low-performance machines). An image file — also known as ISO image — is a file containing the entire CD content that is subsequently written to the CD exactly as it is.


This option was formerly known as burn-proof. It helps to avoid buffer underruns of a CD writer. If burnfree is selected, the CD writer will mark the current position and can return here in the event of a buffer underrun. However, this causes small data gaps which are audible in audio CDs. Therefore, select a suitable burning speed in order to avoid buffer underruns.

Create Image File only

This option creates an image file. You can determine the path for this file under Temporary File. The image file can be written to CD at a later time. To do this, use Tools -> Write ISO Image. If this options is used, all other options in this section will be deactivated.

The Settings tab features options needed for the creation of CDs with multiple data or audio tracks (multi-session CDs).

In the Name of Media tab, you can specify a name, description, publisher, and other details for the CD.

Under File system, you can specify settings for the file system on the CD (RockRidge, Joliet, UDF) and determine how symbolic links, file permissions and blanks are treated.

Finally, the Advanced tab enables advanced users to specify additional settings.

Figure 20.2. Burning CDs with K3b

Burning CDs with K3b