I thought everyone knows the risk of using a micro-drive as apposed to a Compact Flash. the Micro-drive is in essence a MICO DRIVE and with that comes all a hard drives moving parts which are not durable. When ever possible you should use a Compact Flash because they are more durable and no moving parts.
Sorry for your loss....but I remember this happening to me when I owned a D30. What are you shooting with? Is the firmware up to date. Im sure that will not help but at least we can exhaust all possible solutions before you trash it.
Can you access the drive at all? If so try to explore it, retrieve the information and .............. ummm and ummmmm and ummmmm well at least you got the information if you are able to.
I am at a loss for words, sorry for your loss.
No One got anywhere by themselves...Not even you! So the same way you remember someone helping you is the same way someone should remember you helping them.