擁有簡單但強大的圖形界面，K3b 提供很多選項和方式刻錄CD，或DVD，或 BD（藍光）。支持多種類型的圖形方案包括（但不僅限於）DVD 和 VCD 的音頻，數據刻錄方案，同時包括 multi-session 和混合模式（mixed-mode）光盤。K3b 也能夠擦除可重寫式（re-writeable）介質，可以完成更複雜的任務，比如視聽的（audiovisual）編碼和解碼。
當你第一次運行K3b時，你可能會發現K3b提示你沒有找到「光盤寫入驅動器（optical writer drivers）」，意思是你不能寫入光盤。不需要慌張，K3b會打開一個設置窗口幫你獲得K3b運行所需要的各種工具。這包括了查看擁有那些程序的用戶組。不過你沒必要去改它，因為K3b會自己應用正確的權限到外部程序上。通常來說這些程序是cdrecord，growisofs以及cdrdao。如果你想，你可以讓 K3b 使用「burning」用戶組並把它指向你的光盤驅動器。如下圖就是一張設置窗口的圖片。
但 K3b 可以完成比上面多的多的任務，你可能會發現某些其他任務正好對你有用。看一下這個列表瞭解其他的功能（點擊圖片查看大圖）：
Configuring the internals
Most of the default settings can simply be left alone. It is however, recommended that you do take a look at the Advanced Settings page. Here you can set various important settings, if required.
- Use Burnfree should be set - it controls the burn, ensuring that the buffer never gets dangerously low (which reduces the quantity of bad burns).
- You may wish to automatically erase re-writable disks.
- The option Do not eject medium after write process is invaluable if your drive is one that cannot be closed quickly enough for Verify to happen.
Preparing to burn a disk
When starting a new project, you should ensure that K3b has detected the correct optical media, such as CD or DVD. On the status line at the bottom of the screen you should see the size of disk which is currently set. If this is not correct, or you require a different size, simply right-click on it and set the preferred size from the provided list:
All that's left to do now, is choose what is to be burned. The top half of the screen functions like a file manager. Simply drag and drop the files and directories you wish to burn onto the large pane at bottom right. On the left you will see a tree view forming of your chosen files. Should there be some files or directories which you do not want to burn, these can be easily removed from the project by simply removing them from the panel at the bottom. Select the file to be removed (you can control-click to select multiple ones), then right-click, and select Remove. After this, the bottom left-hand panel should show an updated tree representation of the directories and files.
The top line will be the title of the disk. In many cases this will be fine, but if you would like to change this to something else, simply right-click on the title and rename it.
You are now ready to hit the Burn button.
You will see on my screenshot that no disk was present. When you have inserted the appropriate disk you will see a description of it on that line.
There are still one or two choices to be made. I would recommend that you set Verify written data, then hit the Save icon at the bottom of the screen, ensuring that it becomes your personal default. For most modern drives it's safe to leave mode and speed to Auto. If you may wish to burn another copy of the disk at a later date, select Create image, which will save having to set up the burn again. Set the number of copies you want to burn, then, when you are satisfied, hit Burn.
Burning an Audio CD
This page tells you how to burn an audio CD from your stored files.