I have two hard drives a western Digital and a seagate both 160 GB they are showing 0.00 MB Capacity.Anyone who can offer any help?

both together? have you try one by one?

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data recovery service[/b]

Depending on the Seagate, could be a DIY if your careful, based on what I know I'm thinking the WD will require a pro, or expensive equipment and extensive knowledge.

What are the specs of the Seagate? Series, model, firmware, etc

U first diagnostics use MHDD or similar tool and check ATA registers. check if hdd´s are correctly detected, Model, SN, check answers to read sector commands and check ATA Control registers answers while tried to read sectors like IDNF or ABRT , At the WD Case its knowking and shows´0 bytes could be caused by a bad head too, from this answer u will know the problems and possible solutions if u dont know how to do it, u know the answer

Regards