crwdns2934241:0crwdne2934241:0 rab777hp

crwdns2934249:0crwdne2934249:0:

Try holding option down instead, if you manage to boot to the selection, then select the DVD. 
What exactly is wrong with your computer that you need to boot from your install disk?

crwdns2915684:0crwdne2915684:0:

open