Unable to Boot from cd

Just wanted to know if anyone has seen the "A read disk error occured press
CTRL+ALT+DEL to restart"

Grande Burrito

is this while booting from a CD? Is the CD scratched? Is the drive known to work?

I see this all the time with burned disks, make sure that the cd or dvd reader is not having problems with burned disks (reads regular disks just fine). If that is the case you can try cleaning the lense, but almost always you will need a new reader.