[Coladam] MI Disk Drives

Jim Notini jnoti2 at comcast.net
Mon Jul 4 17:49:58 CEST 2011

Yes, this is a presumption on my part just from everything I have seen and 
heard over the last 2 years since being actively back in the scene after 
over 10 years of just following things from the sidelines. I have heard from 
a limited number of people that their M.I. drives have stopped working 
properly (Rich C., Luc M. and some others) as well as a number of the 
original Hard Drives designs that were made by M.I. that have become 
inoperable. Is the rate of failure any more or less than is/has been 
experienced in the PC World? Maybe not, but the end result is a lot more 
devasting to the owner when you are talking about a retro system and a 
repair or replacement option is usually not available.

As far as still working M.I. drives, until you let me know that your's are 
still working, I have only heard that Bob S.'s large collection of M.I. 
drives (Floppy and Hard) are still in working order and I hope there are a 
lot more out there that may eventually surface.

Yeah, buying a Coleco drive, be it a Data or Disk Drive, on eBay or 
CraigList is really a crap-shoot. I have been extremely lucky with the 5 
Disk Drives that I have picked up by different means, and only one has had 
an issue... an easily fixed alignment issue. The Data Drives have been a 
mixed bag, but out of the 12 or so I have acquired, only 3 were completely 
shoot and those were all the early revisions of the drive. The latest JVC 
revision drives have all worked extremely well.

Another oddity is the total lack of converted Disks Drives (320K, 360K and 
720K). There were 100's and 100's of Coleco 5 1/4" 160K drives converted 
back in the day by OBS, E&T, ADAM's House, ADAMLink, etc. and I haven't seen 
one of these show-up anywhere... although there are a lot of people here on 
the List here that still have their's.

As a whole, probably not the best "case study" ever done, but with such 
limited numbers to draw from....

----- Original Message ----- 
From: "David" <yyzonian at hotmail.com>
To: <coladam at adamcon.org>
Sent: Monday, July 04, 2011 10:02 AM
Subject: [Coladam] MI Disk Drives

> This is the first comment like this that I have heard. I own several of 
> the MI disk drives and they seem fairly robust and have not had an issue 
> with any of them. Is this a presumption or have you heard specific 
> feedback about them being unreliable?
> I could also say that a lot of the original Coleco drives that do wind up 
> on Ebay are not really tested working so that doesnt seem to stop too many 
> people from selling them anyway.  And I bought at least 2 off Ebay that 
> were not fully functional.
> But you are right, I watch for them too and cant recall ever seeing one on 
> Ebay. I should put one up on Ebay and test the waters...
>> Date: Sun, 3 Jul 2011 22:37:48 -0500
>> From: "Jim Notini" <jnoti2 at comcast.net>
>> Subject: Re: [Coladam] disk drives
>> To: "Frances and/or Richard Clee" <cleechez at tamcotec.com>,
>> <coladam at adamcon.org>
>> Message-ID: <F55B537F5B9240E9BFA5C8579DDCB476 at HomePC>
>> Content-Type: text/plain; format=flowed; charset="iso-8859-1";
>> reply-type=original
>> Seems like the large majority of Mark's/Micro Innovations drives didn't 
>> have
>> a very long lifespan unfortunately... probably why I haven't seen a 
>> single
>> one go up on an eBay auction since I've been following things. It's 
>> either
>> that or the simple fact that those ADAMites who were still around and 
>> bought
>> these drives from Mark are the true hardcore fans and will probably never
>> sell their drive.
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