I've burned off enough copies of OS X (legal - had to. boss kept on scratching them up) to know that sometimes you just have weird burns. The install is touchy. You can use the same ISO and use the exact same CD on the exact same burner, and one will fail. It's really messed up, and I have no explination. Guess a MD5 checksum should be run before trying to install, but I bet that it would say that a bad disk was okay as well.
MacBook 2GHz Intel Core 2 Duo w/ 2GB DDR2 RAM & 120GB SATA 5400RPM HDD
Canon Rebel XTI
Google Cr-48 Beta Laptop