Mirza, if you're running XP Pro you might also want to check local security settings. Type secpol.msc in the run dialog box. In the left pane click Security Options and locate Devices:Restrict CD Rom... in the right pane. Dbl-click it and make sure it's disabled.
I have a home network with 2 computers. On one machine is a DVD-ROM and I marked the drive as shared. But I still cannot access the ROM on the other machine. The shared drive is visible, but when I try to access it, it says, that \\othercomp\cd-dvd is not accessible. You might not have the permission to use this network resource. Contact the administrator of this server to find out if you have access permissions.
Like I said, I marked the drive as shared.
Thanks in advance.