kushall.Henr@XEROX.COM (06/27/90)
You can not read/write std IBM 360K floppy on the rainbow RX50 drive The IBM 360K format is DSD at 48 TPID The Rainbow drive is single sidded SSDQ at 96 TPI You can read write the IBM 175K format SSDD
imp@dancer.Solbourne.COM (Warner Losh) (06/28/90)
While this is a little out of the thread, I have a warning for you. A couple weeks ago I stated that you could use the AT HD floppies. Well, last night I had four of them fail on me at once. All were HD floppies that had been working fine. No DD floppies were failing. I even had problems reformatting the HD's. So, either my disk drive has finally given up the ghost, or these HD disks are to blame. -- Warner Losh imp@Solbourne.COM
SLSW2@cc.usu.edu (Roger Ivie) (06/29/90)
In article <1990Jun28.162214.4880@Solbourne.COM>, imp@dancer.Solbourne.COM (Warner Losh) writes: > While this is a little out of the thread, I have a warning for you. A > couple weeks ago I stated that you could use the AT HD floppies. > Well, last night I had four of them fail on me at once. All were HD > floppies that had been working fine. No DD floppies were failing. I > even had problems reformatting the HD's. So, either my disk drive has > finally given up the ghost, or these HD disks are to blame. Actually, I'm a bit surprised that they worked at all. The high density disks use a different media with a different coercivity. I've never been able to, for instance, format a 1.44M 3.5" disk at 720K. My boss, an analog guy, mumbled things about filter frequencies and how the head and media form some kind of filter, but I didn't understand it. I'm just a lowly software type. -- =============================================================================== Roger Ivie 35 S 300 W Logan, Ut. 84321 (801) 752-8633 ===============================================================================
perry@MCL.UNISYS.COM (Dennis Perry) (07/02/90)
I guess I will copy all the DSHD disk I have been using with no problems for the past year to DSDD disks. I did not reliaize I should not use them. They work with no problems for me, but I sure don't want to have problems in the future with important data stored on them. dennis