Case record · Desktop externals · EDR-2025-3124
DMDE First, Then the Grinding Noise.
Two decades of collecting lived on the Expansion — every CD I've owned since the nineties
— until Windows offered a blank: the whole drive shows unallocated
. He set DMDE loose before going to bed
; by morning its log read errors in the thousands
and the drive had a voice: a grinding you could hear across the room
. His email ended: I should have pulled the plug sooner
.
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In plain English.
'Unallocated' was not the disease; it was the first cough. A drive that abruptly loses its partitions is often one whose heads are already misreading, and a full recovery scan is the worst possible prescription — it marches a weak mechanism across every sector for hours, exactly the exercise a dying head cannot survive. Somewhere in that night the weakest head stopped flying clean and began touching the surface beneath it. Grinding is that contact made audible; from then on, each further minute of running bought nothing and cost plenty.
The tools this job took.
See how your case runs →| System | The part it played | Why we rate it |
|---|---|---|
| DeepSpar Disk Imager 4 | Surveyed each surface, dividing what the night had left from what it took | Images by head map — timeouts, resets and power-cycling managed per head |
| PC-3000 Data Extractor | Drove the rescue read in long straight runs, sound ground first | The PC-3000's imager, taking its orders from the firmware side |
| UFS Explorer Professional Recovery | Stood the filesystem back up and returned albums to their folders | Handles the harder filesystems well — APFS, ReFS, XFS, ZFS and Btrfs |
On the bench.
Price the night before promising anything
Inspection showed a head stack at the end of its life and platters carrying contact marks in bands — light in places, deeper where the scan had dwelt. The mercy was the morning: pulling the plug at breakfast, rather than granting one more evening, is the reason this case has a middle instead of only an ending.
New heads in, and no numbers until the map exists
A matched donor stack restored the drive's sight, and the surface survey drew honest boundaries: broad regions reading quickly and cleanly, set against scarred bands where the signal collapsed. Only with that map on the screen did anyone talk about how much was coming back.
Bank the clean ground, go gently on the scars
The imaging ran as long, straight sweeps with the actuator moved as rarely as possible, because every seek across a marked platter can ferry debris somewhere new. Clean regions were secured whole before the scarred bands got their turn — short visits, low speed, taking whatever each pass surrendered.
How it ended.
The greater part of the library came home with its folders intact. The albums that did not sat inside the scarred bands, and the report listed them by name — a shopping list for the CD boxes still up in his loft. A hard trade, honestly accounted.
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Elsewhere in Desktop externals.
Sound like your drive?
Every case here points the same way: power the device down, take the free diagnosis, then make your decision.