joel@peora.UUCP (03/15/89)
I just got a high-density floppy controller for my XT clone at
home and I was thinking about replacing the 360 kb drive with
a 1.2 Mb one. The other floppy bay already has a 720 kb drive.
I would still like to able to write disks that a 360 kb drive
can read, since I need to transfer data to machines sometimes
that only have 360kb drives. I know that this process is not
reliable with the normal write on a 1.2 mb drive.
I've have seen ads for programs that purport to let a 1.2 mb write
to 360kb disks reliably. I would like to know if these programs
actually work, and if so which ones do work. I would also like
to hear if there are any public domain or shareware versions
of these programs.
--
Joel Upchurch/Concurrent Computer Corp/2486 Sand Lake Rd/Orlando, FL 32809
joel@peora.ccur.com {uiucuxc,hoptoad,petsd,ucf-cs}!peora!joel
Telephone: (407) 850-1040 Fax: (407) 857-0713todd@stiatl.UUCP (Todd Merriman) (03/15/89)
In article <3789@peora.ccur.com> joel@peora.UUCP writes: >I would still like to able to write disks that a 360 kb drive >can read............... I recently posted the same issue to the net, and several people responded with a workable solution: Format the 360k disk on the 1.2M drive using the /4 switch. You may then write to that disk on the 1.2M drive, and it can be read on a 360k drive. Do not write that disk on the 360k drive (this includes deleting files). The 1.2M drive should be able to read a 360k disk formatted on the 360k drive with no problems. ...!gatech!stiatl!todd Todd Merriman 404-377-TOFU Atlanta, GA w
tmurphy@wpi.wpi.edu (Tom [Chris] Murphy) (03/16/89)
In article <3789@peora.ccur.com> joel@peora.UUCP writes: >I just got a high-density floppy controller for my XT clone at >home and I was thinking about replacing the 360 kb drive with >a 1.2 Mb one. The other floppy bay already has a 720 kb drive. > >I would still like to able to write disks that a 360 kb drive >can read, since I need to transfer data to machines sometimes >that only have 360kb drives. I know that this process is not >reliable with the normal write on a 1.2 mb drive. > If possible, you might want to borrow a couple of 1.2 Meg drives from different manufacturers and try them on your machine. I have heard that the problem with 1.2 Meg drives is not universal. My Leading Edge D2 has a Panasonic 1.2 Meg drive, and a controller on the motherboard, and I have been unable to MAKE 360K disks fail on other machines, and I've tried pretty hard. Tom -- Thomas C. Murphy Worcester Polytechnic Institute CAD Lab Internet: tmurphy@zaphod.wpi.edu tmurphy@wpi.wpi.edu BITNET: TMURPHY@WPI CompuServe: 73766,130 "I drank what?" - Socrates
yuan@uhccux.uhcc.hawaii.edu (Yuan 'Hacker' Chang) (03/20/89)
-In article <3789@peora.ccur.com> joel@peora.UUCP writes: ->I would still like to able to write disks that a 360 kb drive ->can read............... In article <3787@stiatl.UUCP> todd@stiatl.UUCP (Todd Merriman) replies: - -Format the 360k disk on the 1.2M drive using the /4 switch. You may -then write to that disk on the 1.2M drive, and it can be read on a 360k drive. -Do not write that disk on the 360k drive (this includes deleting files). -The 1.2M drive should be able to read a 360k disk formatted on the 360k -drive with no problems. Better yet: if you know for sure that the disk has been written to on a 360K drive, copy the content of the disk to another disk (say, a harddisk), erase the disk completely (using a magnet or a bulk-eraser), format with the /4 switch, and copy the content right back. Works every time... -- Yuan Chang "What can go wrong, did" UUCP: {uunet,ucbvax,dcdwest}!ucsd!nosc!uhccux!yuan ARPA: uhccux!yuan@nosc.MIL "Wouldn't you like to INTERNET: yuan@uhccux.uhcc.Hawaii.Edu be an _A_m_i_g_o_i_d too?!?"
abcscnge@csuna.csun.edu (Scott "The Pseudo-Hacker" Neugroschl) (03/23/89)
In article <3524@uhccux.uhcc.hawaii.edu> yuan@uhccux.UUCP (Yuan 'Hacker' Chang) writes: ]-In article <3789@peora.ccur.com> joel@peora.UUCP writes: ]->I would still like to able to write disks that a 360 kb drive ]->can read............... ] ]In article <3787@stiatl.UUCP> todd@stiatl.UUCP (Todd Merriman) replies: ]- ]-Format the 360k disk on the 1.2M drive using the /4 switch. You may ]-then write to that disk on the 1.2M drive, and it can be read on a 360k drive. ]-Do not write that disk on the 360k drive (this includes deleting files). ]-The 1.2M drive should be able to read a 360k disk formatted on the 360k ]-drive with no problems. ] ] Better yet: if you know for sure that the disk has been written to ]on a 360K drive, copy the content of the disk to another disk (say, a ]harddisk), erase the disk completely (using a magnet or a bulk-eraser), ]format with the /4 switch, and copy the content right back. Works every ]time... I think you guys got it backwards... The original poster wanted a way to write 360's on a 1.2M drive so that a standard 360K drive could read it. The 1.2M drive's heads write a much narrower track, or some such so sometimes 360's written on a 1.2M drive can ONLY be read by a 1.2M drive. A software package (CPYAT2PC) claims to have solved this problem. Two questions: 1) Does said software package work 2) If it does, why doesn't IBM/MS use it in the driver? -- Scott "The Pseudo-Hacker" Neugroschl UUCP: ...!sm.unisys.com!csun!csuna.csun.edu!abcscnge -- unless explicitly stated above, this article not for use by rec.humor.funny -- Disclaimers? We don't need no stinking disclaimers!!!
marc@rna.UUCP (Marc Johnson) (03/26/89)
In article <1852@csuna.csun.edu> abcscnge@csuna.csun.edu (Scott Neugroschl) writes: >In article <3524@uhccux.uhcc.hawaii.edu> yuan@uhccux.UUCP (Yuan 'Hacker' Chang) writes: >]-In article <3789@peora.ccur.com> joel@peora.UUCP writes: >]->I would still like to able to write disks that a 360 kb drive >]->can read............... >] > [stuff deleted] >]In article <3787@stiatl.UUCP> todd@stiatl.UUCP (Todd Merriman) replies: > >I think you guys got it backwards... The original poster wanted a way >to write 360's on a 1.2M drive so that a standard 360K drive could read >it. The 1.2M drive's heads write a much narrower track, or some such >so sometimes 360's written on a 1.2M drive can ONLY be read by a 1.2M >drive. A software package (CPYAT2PC) claims to have solved this problem. > > [more stuff deleted] > >Scott "The Pseudo-Hacker" Neugroschl >UUCP: ...!sm.unisys.com!csun!csuna.csun.edu!abcscnge Don't know about CPYAT2PC, but I have had success with the following method: KEY---> 1) Format the disk on the 360K drive 2) Copy the files you want to it using the 1.2MByte drive. It seems that the formatting is what kills the portability..once formatted, the thing seems to work so a 360K drive can read the disk. Of course, if you don't have access to a 360K drive to do the original format, you're stuck. marc =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= = Marc Johnson BITNET: rna!marc@rockvax.bitnet = = Rockefeller Univ. Neurobiology UUCP: ...cmcl2!rna!marc = = New York City INTERNET: marc%rna@rocky2.rockefeller.edu = = (129.85.2.1) = = = = "Gimme the beat boys and free my soul, I wanna get lost in your rock & roll = = ...and drift away" = =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
air@anableps.berkeley.edu (03/26/89)
>Don't know about CPYAT2PC, but I have had success with the following method: > >KEY---> 1) Format the disk on the 360K drive > 2) Copy the files you want to it using the 1.2MByte drive. > >It seems that the formatting is what kills the portability..once formatted, >the thing seems to work so a 360K drive can read the disk. Of course, if you >don't have access to a 360K drive to do the original format, you're stuck. >marc I have found this method to be successful on many difernt systems i have worked with. Hope this helps. _______ _ __ _ _ __ __ Arthur Ernest Wright @ \ / / \ / / \ / \ / / / \ (503)344-7969 \ O / /__/ /__ / / /__/ / /__ \__ ___ _ _ _ \ / / / / / / / / | | |_ / | \ /\ | /\ /_ \/ v / /__ \_/ / /__ /__ \__/ | |_ \_ | | \/ |_ \/ \/ /
tim@j.cc.purdue.edu (Timothy Lange) (03/28/89)
As long as the double density floppy has been formatted on a double density drive, it should be usuable on both high density and double density drives in any situation. I help copy our campus SAS distribution. One batch we formatted the diskettes on double density drives, the other we bought pre-formatted disks. All disks were written on by about 20 IBM AT's with high density drives. Of the 1200 diskettes done, none have come back due to read failure. They were being used by all type of drives and machines. Tim. -- Tim Lange. Purdue U. Computing Center/MATH Bldg./W. Lafayette, IN 47907/317-494-1787 Arpanet=tim@j.cc.purdue.edu/CIS=75410,525/Bitnet=TIM@PURCCVM/Fidonet=1:201/30