This application comes with a fine documentation called "The Kscd Handbook" which can be accessed through KDE Help. Make sure you have gone through it thoroughly before you ask anything.
If you've read up, you wouldn't have to ask.... There is a little button on the interface that has a 1 and 0 that is supposed to look like an on/off switch. Clicking on it will exit the CD player. (It is located in the lower left hand side of the CD player.)
Current snapshot of Kscd has solved this confusing behaviour by making the X close the window and where the 1 0 was is now the "DOCK" button.
If you are using version 1.2.0, try upgrading.
Create a symlink from the actual cdrom device to /dev/cdrom. For example: ln -s /dev/hdc /dev/cdrom.
An easy way to find out your actual cdrom device is to look in the file /var/log/dmesg for a line similar to:
hdc: CD-ROM 48X/AKU, ATAPI CDROM drive |