Newsgroups: comp.windows.ms Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!think.com!zaphod.mps.ohio-state.edu!magnus.acs.ohio-state.edu!csn!boulder!tramp.Colorado.EDU!colfelt From: colfelt@news.colorado.edu (COLFELT ANDREW BRINTON W) Subject: Re: Strange memory errors in Windows? Message-ID: Sender: news@colorado.edu (The Daily Planet) Nntp-Posting-Host: tramp.colorado.edu Reply-To: colfelt@tramp.Colorado.EDU Organization: University of Colorado, Boulder References: <1991May29.005554.10290@cunixf.cc.columbia.edu> Date: 29 May 91 04:48:19 GMT Lines: 33 mjf@cunixb.cc.columbia.edu (Michael J Flory) writes: >Some time ago I posted with a strange and dangerous error I got running >DISKCOPY in a DOS window with a .pif asking for all 640 K if it could get >it. In short, the diskcopy operation miscopied a couple of sectors every >dozen-and-a-half or so (the number varied). But although VERIFY was on, >I got no error message -- I discovered it through DISKCOMP. The best way to avoid this would be to run the DOS window full-screen. It sounds a little like the floppy errors could be caused by the switching of CPU attention. When you're 'multitasking' in Windows and performing a sensitive operation like copying sector-for-sector, the time-lag, skip, stutter, whatever, the window is causing a lack of proper 'attention' to the process and thus bytes are getting dropped. Try DISKCOPY in DOS, full-screen, and see if the problem goes away. Better yet, try the window again, with the BackGround Box checked. If the disks still lose bytes, try full-screen, BackGround. One of these setups should allow the CPU to devote sufficient attention to the copying process to maintain good housekeeping on all bytes in all sectors. (I presume you're running a 386, since you'd not have the windowed DOS option with a 286.) -- ______________________________________________________________________________ Andrew BW Colfelt colfelt@tramp.colorado.edu____________________________________________________ -- ______________________________________________________________________________ Andrew BW Colfelt colfelt@tramp.colorado.edu____________________________________________________