crwdns2933423:0crwdne2933423:0
crwdns2918538:0crwdne2918538:0

crwdns2934241:0crwdne2934241:0 S W

crwdns2934249:0crwdne2934249:0:

I have a feeling that the DVD-ROM drive thinks there is a disc in it.  I would suggest replacing the drive to see if your problem is resolved.

crwdns2915684:0crwdne2915684:0:

open