Path: utzoo!attcan!utgpu!news-server.csri.toronto.edu!rutgers!cs.utexas.edu!tut.cis.ohio-state.edu!ucbvax!ucdavis!csusac!csuchico.edu!walleye!tempest From: tempest@walleye.uucp (Kenneth K.F. Lui) Newsgroups: comp.sys.next Subject: Re: NeXT floppy disks Message-ID: <1990Dec17.091801.3617@ecst.csuchico.edu> Date: 17 Dec 90 09:18:01 GMT References: <1990Dec16.072544.233@rice.edu> <1990Dec16.093107.26718@ecst.csuchico.edu> <1990Dec17.065959.19798@cunixf.cc.columbia.edu> Sender: news@ecst.csuchico.edu (USENET) Reply-To: tempest@walleye.UUCP (Kenneth K.F. Lui) Distribution: usa Organization: California State University, Chico Lines: 23 In article <1990Dec17.065959.19798@cunixf.cc.columbia.edu> ta-aca@cunixd.cc.columbia.edu (Andrew C. Athan) writes: >formatted ... but if it works the first time, its likely to retain data for a >LONG LONG time. If it works in practice --- it works period. > If it works for you, that's great; however, I wouldn't do it myself and wouldn't recommend it to anyone else. What are the prices for HD disks these days anyway? Aren't they inexpensive enough to not bother with drilling holes? >acheive much higher densities. I have yet to try formatting a 720 for ED >usage, but I would suspect the real-world failure rate to be very high. > Instead of using magnetic particles that's pin-like (for conven- tional longitudinal recording) ED diskettes use particles that are hexagonal in shape (for perpendicular recording). I read an article in Scientific American several years ago about this and I'm fairly sure that the NeXT floppy disk subsystem works in a similar fashion. Ken ______________________________________________________________________________ tempest@ecst.csuchico.edu, tempest@walleye.ecst.csuchico.edu,|Kenneth K.F. Lui| tempest@sutro.sfsu.edu, tempest@wet.UUCP |________________|