I have been using Sony 16GB USB Hard Drive for 2 years...recently, one of my friend accidentally forget to ejected it from an PC... Therefore when I plug-in to my Mac Pro... it's undetectable at the Finder. Then, when I use Disk Utility, I'm able to detect it...but here come the problem...I can't repair it or verify it ..here's what it shown on my screen... Sony Storage Media Media Type : Disk Partition Map Scheme : Unformatted Disk Identifier : disk6 Writable : No Ejectable : No Location : External Total Capacity : 0 Bytes Disk Number : 6 Partition Number : 0 Disk Description : Sony Storage Media Media Total Capacity : 16.04 GB (16,039,018,496 Bytes) Connection Bus : USB Write Status : Read/Write Connection Type : External S.M.A.R.T. Status : Not Supported What does it mean? What should I do?