🚀 go-pugleaf

RetroBBS NetNews Server

Inspired by RockSolid Light RIP Retro Guy

Article View: comp.sys.ibm.pc.misc
Article #8373

Re: DS/DD --> DS/HD 3.5" Disk Notchers

#8373
From: Nur Iskandar Taib
Date: Fri, 15 Mar 1991 21:32
34 lines
2105 bytes
>IMHO you're taking a chance.  The media on a HD diskette is much
>much more dense than that on a 720K diskette.  It is my understanding
>that at the factory(s) the diskettes are tested for density and those
>that pass are marked HD and those that don't are marked DD.  I
>wouldn't trust MY data to such a diskette.  One of the faculty members
>that I support, who used DD density diskettes formatted HD for backing
>up data, had data on one of the diskettes just sorta fade away, he has
>since invested in HD diskettes and transferred his surviving data.

I remember an ad for one of these a while ago claiming
that the person who invented the disk driller examined 
the media on DSDD and DSHD diskettes and couldn't find 
any difference. Sounds fishy to me...

I did use to use SSDD diskettes as DSDD, and had few
problems, but thats another set of problems altogether
(DOS Format will mark bad spots, but it can't do much 
about fading data!). 

One use for "pushed" diskettes would be for storing all 
those GIF files and shareware you download and never 
use, but _think_ you may use one day....






--
-------------------------------------------------------------------------------
Iskandar Taib                        | The only thing worse than Peach ala
Internet: NTAIB@AQUA.UCS.INDIANA.EDU |    Frog is Frog ala Peach
Bitnet:   NTAIB@IUBACS               !
-------------------------------------------------------------------------------
Technical Details
Message-ID: <1991Mar15.213216.8471@bronze.ucs.indiana.edu>
Path: arc1-ca.pugleaf.net!utzoo!news-server.csri.toronto.edu!cs.utexas.edu!sun-barr!olivea!mintaka!snorkelwacker.mit.edu!usc!zaphod.mps.ohio-state.edu!sol.ctr.columbia.edu!bronze!silver!ntaib
References: <1991Mar11.182336.3274@vax5.cit.cornell.edu> <19536@brahms.udel.edu>

Show Full Headers
Complete Article Headers
Path: arc1-ca.pugleaf.net!utzoo!news-server.csri.toronto.edu!cs.utexas.edu!sun-barr!olivea!mintaka!snorkelwacker.mit.edu!usc!zaphod.mps.ohio-state.edu!sol.ctr.columbia.edu!bronze!silver!ntaib
From: ntaib@silver.ucs.indiana.edu (Nur Iskandar Taib)
Newsgroups: comp.sys.ibm.pc.misc
Subject: Re: DS/DD --> DS/HD 3.5" Disk Notchers
Message-ID: <1991Mar15.213216.8471@bronze.ucs.indiana.edu>
Date: 15 Mar 91 21:32:16 GMT
References: <1991Mar11.182336.3274@vax5.cit.cornell.edu> <19536@brahms.udel.edu>
Sender: news@bronze.ucs.indiana.edu (USENET News System)
Distribution: comp
Organization: Indiana University, Bloomington
Lines: 34