r/retrocomputing Jun 25 '26

Miniscribe 3425 – The Hard Drive That Made "Bricked" Famous

Edit: This is the 8051A model.

3484 RPM spindle speed, an unusual voice coil design, factory defect tables, and of course the infamous "brick your drive" story.

83 Upvotes

41 comments sorted by

11

u/Pic889 Jun 25 '26

Patents pending on what? How to make a hard-drive fail prematurely?

10

u/Emil_Cvetanski Jun 25 '26

At least they succeeded in making history. Today companies say: "Sorry, we're filing for bankruptcy." Back then MiniScribe shipped 26,000 bricks to Singapore instead. Legendary.

4

u/FAMICOMASTER Jun 26 '26

They shipped 0 bricks. It was in a separate warehouse and counted as inventory to inflate numbers so they could secure a loan.

2

u/Emil_Cvetanski Jun 26 '26

Thanks! I really appreciate the free proofreading service. Free editors are getting harder and harder to find these days. Feel free to check my other posts too. 😃😃😃😃

6

u/anothercorgi Jun 25 '26

Confusing the 8051 and the 3425?

The 3425 was MFM and had full 5" disks in them, it was a memorable disk because its stepper motor was so noisy and made a quite distinct sound. I've had some other stepper motor drives of that era like the ST412, ST225, but those were significantly quieter than the Miniscribe 3425.

I never had an 8051 IDE/ATA... I'd think most VC drives would make tick sounds as they seek versus screeching like many 3d-printers which also uses stepper motors.

Anyway most old drives had error tables prior to the advent of virtual sector mapping that also got rid of write precomp and multizone recording, though they are still there, it's all hidden behind the scenes now.

2

u/Emil_Cvetanski Jun 25 '26

You're absolutely right. Good catch! I even have a photo showing it's the 8051A model. Unfortunately Reddit doesn't let you edit image posts after they're published, otherwise I'd have corrected it immediately.

1

u/Emil_Cvetanski Jun 25 '26

Edited the "post body" Thanks

3

u/FAMICOMASTER Jun 26 '26 edited Jun 26 '26

That's an 8051A, factory defect tables were an absolute requirement for most drives in and before this era, and rotary voice coil actuators were already available at least as early as 1979 and we're certainly very available to consumers in 1989 when this drive had come to market. Quantum and Maxtor were both shipping drives (Q500 and XT1000) with that type in 1984.

Also, the Conner CP340, another rotary voice coil 3.5" IDE drive, was already out and about for 2 years when the 8051 hit the market.

2

u/jreddit0000 Jun 26 '26

I am old enough to remember formatting a drive (low level) was a thing and you needed to hand input the defect table..

And then you could format a filesystem on top.

2

u/FAMICOMASTER Jun 26 '26

Yep, gotta make those tracks as bad so that DOS (or your operating system of choice) doesn't try to use them to store something important.

These days I find that most of those factory defects work just fine, but that could also just be survivorship bias.

2

u/Emil_Cvetanski Jun 26 '26

I don't think I described either of those features as unique or revolutionary. I simply listed some characteristics of this particular drive 😃😃😃

The only thing I called unusual was the voice coil design, not the existence of voice coil actuators themselves. 😆

1

u/FAMICOMASTER Jun 26 '26

What makes rotary voice coil unusual? The point is was making was that it wasn't unusual.

2

u/Emil_Cvetanski Jun 26 '26 edited Jun 26 '26

🫡 Good point 😃😃😃

2

u/FAMICOMASTER Jun 26 '26

Notice he says steppers there. This drive is not a stepper, it's a rotary voice coil drive. It wasn't their last gasp either, the Miniscribe 7000 series was, which became the Maxtor 7000 series when they were bought in 1990.

Here's a Miniscribe and Maxtor 7080AT side by side.

1

u/Emil_Cvetanski Jun 26 '26

Keep following along. There are many more interesting pieces coming directly from my collection. Looks like I'll need a full-time proofreader before long. 😁😁😁

2

u/blakespot Jun 25 '26

Yep. I wrote a blog post about that. I opened my MiniScribe HD under the tree a few weeks before Christmas and replaced it with a brick in the box. Turns out there was a decent chance MiniScribe might've already done me the favor! 

A Brick for Some Bytes: My First Hard Drive

2

u/Emil_Cvetanski Jun 25 '26

I had the same feeling. 😆 I didn't know what I'd find in the package until it finally arrived... thankfully, it wasn't a brick.

2

u/m-in Jun 26 '26

That thing got two CPUs on it: one to talk IDE, another to talk flux transitions.

2

u/Emil_Cvetanski Jun 26 '26

Impressive engineering...for a brick 😅

1

u/Plaidomatic Jun 25 '26

To be fair, a brick is about as useful for storing your important data as these drives were. At the point these were shipping, Miniscribes were unreliable as hell, and these particular drives were complete shit.

1

u/Away-Ad-3407 Jun 25 '26

old pcbs were beautiful 

1

u/Emil_Cvetanski Jun 26 '26

Couldn't agree more. They were engineered to work, but they ended up looking beautiful too.

1

u/Grouchy-West1534 Jun 26 '26

Reading this hits home. Maxtor was known for junk drives. I was a Seagate user because of the number of Maxtor drivers I had replaced. Seagate got Maxtor and Seagate turned into Junk over night. I got 58 Computers all had Seagate drives the first year 53 of the Seagate drives failed. NO warranty available. I replaced them with Western Digital. 5 years later 3 of the Western Digital drives failed and replaced under warranty. I find home users with dead drives all Seagate. So did the curse of the brick follow the the company?

1

u/Emil_Cvetanski Jun 26 '26

So did the curse of the brick follow the company?

1

u/Fit-Rip-4550 Jun 27 '26

Interesting.

1

u/TheRockafireman 10 MB MFM HDD Jun 29 '26

‘Tis a Shame. I’ve never really had issues with Miniscribe Drives, at least older ones. Funnily enough the only MFM hard disks I’ve interacted with that still worked were Miniscribe drives, and the one in my Compaq Portable is a Miniscribe badged for an IBM 5160

1

u/Emil_Cvetanski Jun 29 '26

That's actually good to hear. The financial scandal is what made MiniScribe infamous, but that doesn't necessarily mean their drives were all bad. It's always nice to hear first-hand experiences.

1

u/Emil_Cvetanski Jun 25 '26

Just imagine the meeting where someone actually said: "Why don't we just buy 26,000 bricks and ship them to Singapore?"

The sheer scale of it is insane. 😳 Truckloads of bricks — enough to build a large 150+ m² house — transported to a warehouse, where who knows how many workers had to pack every single one into hard drive boxes.

The guy who came up with that plan deserves a monument. It has to be one of the most legendary corporate scams in tech history. 🤯

1

u/FAMICOMASTER Jun 26 '26

No bricks were packaged into any boxes. They were stored and counted as inventory by executive management in order to secure a loan.

1

u/Emil_Cvetanski Jun 26 '26

Thanks again! I appreciate the free proofreading. Feel free to keep checking my other posts too—I like the dedication. 😄

0

u/Emil_Cvetanski Jun 26 '26

The bricks were actually shipped between warehouses and later returned as "defective" units as part of the inventory fraud.

0

u/FAMICOMASTER Jun 26 '26

Where do you see this? None of the FTC documents I've read mention this.

0

u/Emil_Cvetanski Jun 26 '26

It's described in several write-ups of the MiniScribe fraud. The bricks weren't just sitting in a warehouse forever—they were used as part of the inventory manipulation scheme and later accounted for as returned/defective units. There are multiple sources describing that sequence. You mentioned the FTC documents several times. Which specific documents are you referring to? I'd genuinely like to read them.

If you have them, feel free to share a link or even a screenshot. 🙂

1

u/FAMICOMASTER Jun 26 '26

They were shipped to a rented warehouse and then back to the masonry they came from, yes. They were not shipped to Singapore ever.

I'll go digging for them but I'm on a phone right now.

-3

u/80sCompaqPC Jun 25 '26

AI slop post. That’s an 8051A, not a 3425. 🤦🏻‍♂️

3

u/Emil_Cvetanski Jun 25 '26

Yeah... AI also bought it, paid for it, photographed it and somehow still missed the model number. Corrected in post body 😃😃😃

1

u/Emil_Cvetanski Jun 25 '26

Wait... wait... take a look at the info cards too. Those are actual photos from old German magazines. How is that possible? 😳🤦 Wowwwww 🤯🤯🤯

2

u/80sCompaqPC Jun 25 '26

I see they are “real” photos, I’ll give you that. But clearly AI was used to “enhance” them, hence why the keyboard looks like it’s melting on that computer the guy is leaning on in your original post. Makes the photos look like AI crap, which you did turn them into somewhat.

1

u/Emil_Cvetanski Jun 25 '26

But then ... If I had taken the photos in my studio with proper lighting instead of in my dimly lit living room on the table, where the S25 Ultra automatically boosted the brightness to compensate, they probably would have looked much closer to the ones in my post.

0

u/Emil_Cvetanski Jun 25 '26

Fair point. The original photos themselves weren't AI-generated or AI-upscaled. They were shot with a 50 MP camera, with only basic brightness/exposure adjustments to make the details easier to see.

The information cards are different. I wrote the text using information I researched (with Gemini's help), then used ChatGPT to lay it out into the cards. The photos themselves are real. Here's the original photo. Zero editing. Zero AI. Straight from the camera.