Depends ... If logical failure, usually can be recovered. Physical failure, 50-50 loh. Last week had 1 HD recovered in Shanghai, RMB1800. Tried the "services" in computer city in HK, charged HKD100-300 non-refundable "inspection" fee and turn out tell u will bring to China to fix for HKD2-3K. DBTronix is in HK and very Pro. but also very expensive, around 6-8K!! And I doubt if there is any dust-free lab available in HK to do the physical recovery.