cannot Samsung DVD-ROM to eject

I cannot get my newly installed Samsung DVD-ROM to eject:

$ eject /mnt/cdrom1
eject: unable to eject, last error: Invalid argument
[pwalden@walden4 pwalden]$
[pwalden@walden4 pwalden]$ eject -v /mnt/cdrom1
eject: device name is `/mnt/cdrom1'
eject: expanded name is `/mnt/cdrom1'
eject: `/mnt/cdrom1' is not mounted
eject: `/dev/cdrom1' can be mounted at `/mnt/cdrom1'
eject: `/dev/cdrom1' is not a multipartition device
eject: trying to eject `/dev/cdrom1' using CD-ROM eject command
eject: CD-ROM eject command failed
eject: trying to eject `/dev/cdrom1' using SCSI commands
eject: SCSI eject failed
eject: trying to eject `/dev/cdrom1' using floppy eject command
eject: floppy eject command failed
eject: trying to eject `/dev/cdrom1' using tape offline command
eject: tape offline command failed
eject: unable to eject, last error: Invalid argument

Is there some magic I am missing? Right now I have to power down and use
the manual release pin hole.