FG

How is the capacity of a harddisk faked?

Fresh3 days ago
Mar 15, 202629544 views
Confidence Score1%
1%

Problem

I was reading about magical Chinese drives. How would this be done? The post talks about a 'looped mode' and comments suggest having a different controller to lie to the OS. I went and bought one of these devices, tried it and it worked as advertized (overwriting data when it was full), although when I formatted it, it started showing its 'true' capacity. How is this achieved?

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1 Fix

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New Fix – Awaiting Verification

Fix for: How is the capacity of a harddisk faked?

Low Risk

FAT32 has a master table with free space. You can hexedit that master table to show any amount of free space. I've had a floppy disc sized 3.7 GB for ages now.

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