From: utzoo!decvax!decwrl!sun!megatest!fortune!hpda!hplabs!hao!cires!nbires!zhahai
Newsgroups: net.micro.pc
Title: Re: 96tpi Floppy Driver
Article-I.D.: nbires.146
Posted: Fri Apr 29 19:26:30 1983
Received: Mon May  2 04:04:31 1983
References: sri-arpa.1080

It is my understanding that 96 tpi floppies use a narrower head, and a narrower
"tunnel erase", and thus that they do not write very good 48 tpi disks.  That
is, when a track written by a 96tpi drive (even with 48 tpi spacing) is
read on a 48 tpi drive, the signal is very noisy.  Reading a normal 48tpi
disk on a 96 tpi drive should be ok.  This is from some hardware folks; I
have not tried it myself.  -zhahai   (ucbvax or allegra)!nbires!zhahai