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If it wasn't a catastrophic crash (ie; the head came loose and gouged the disk), there are Data Recovery Companies, but they are far from cheap.
There is also this:
FILERECOVERY® for Windows®. You can DL a Demo that will show you if there are recoverable Files on the disk, but you must Purchase the full version to actually recover them.
$59.95 or
$99.95 for a PRO Version.
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