Path: utzoo!utgpu!news-server.csri.toronto.edu!rutgers!uwm.edu!zaphod.mps.ohio-state.edu!usc!ucsd!ucbvax!VENUS.TAMU.EDU!JDB8042 From: JDB8042@VENUS.TAMU.EDU (John D. Baker) Newsgroups: comp.sys.apple2 Subject: 3.5" disk hardware questions Message-ID: <901201122740.204030b1@VENUS.TAMU.EDU> Date: 1 Dec 90 18:27:40 GMT Sender: daemon@ucbvax.BERKELEY.EDU Organization: The Internet Lines: 25 I have a few questions regarding Apple 3.5" disk equipment. What exactly makes the UniDisk 3.5 so different from the other Apple-compatible 3.5" drives. Why can't one sector-edit a UniDisk 3.5 while other 3.5"drives _can_ be sector-edited? If the UniDisk 3.5s are so different from the others, how can AMR and AE make a 3.5" drive that can be used on both Apple ][s, ][+s, and //es with the 3.5" disk controller AND the //c, //c+ and ][gs Smartport? In other news: Way back when the Chinook CT20c and CT40c had just come out, I read that they could also be attached to a //e via the UniDisk 3.5 controller card. How is this possible? In fact, it was in a copy of inCider (arrgh!) at the time (in their review, in fact!). Please elaborate, as it sounds like a quick and sneaky way to add a hard disk to a //e (3.5 controllers are easily obtainable and much less expensive than a EssSeeEssEye card). Thanks for the help. John D. Baker ->An Apple 5.25", 3.5", 8" ZCPR3 nut //