It looks like the CD you burned contains DOS rather than Ubuntu (or perhaps contains both). One possible cause of this is if you told your CD burning software to do something special to make the CD bootable. Ubuntu
.iso images are already bootable, so you don't need to do anything like that.
I recommend making a new CD using one of the officially recommended techniques described here. The problem here appears to be in the way you have used your CD burning software (or a bug in the software), and it would be difficult for us to give you advice about how specifically to correct that unless someone here happens to be experienced with the utility you used.
Alternatively, you might consider booting Ubuntu from a USB flash drive rather than a CD.
If you continue to have trouble, you should make sure to MD5 test the Ubuntu
.iso image you downloaded.
This answer assumes you are booting from the CD correctly. The term "try to run this CD" is a bit confusing, though, so if my answer doesn't help, can you clarify what exactly you are doing with the CD after you burn it?