My MacBook pro does not see my external hard drive

I have an external hard drive La Cie (Porsche 250 gb).
Once I disconected it incorrectly.
Since that time it doesen't work
More specifically when I try to work with the hard drive the following message appears:
'Eject; Initialize or ignore'
I also tried to verify the disk with 'Disk Utility' but it doesn't work
Does someone know how I could access to the disk without formatting it?
Thank you
Lorenzo

I also tried to verify the disk with 'Disk Utility' but it doesn't work
I assume that mean your can "see" the external from DU? Normally, if DU can see the disk but can't repair it, you'll need something stronger like DiskWarrior. DW's strength is in recovering and rebuilding directories, the cause of most drive problems.
AJ

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My MacBook pro does not see my external hard drive

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