ImageDisk update

I just discovered a flaw in my DMA setup sequence which exposes a timing window during which bus noise can cause false dma events (DMA enabled but FDC not driving it yet), leading to ImageDisk not working correctly in some PCs. I have corrected this (with the help of a couple of very knowlegeable list members - thanks guys!), and released an updated ImageDisk 1.16 with the fix. I have also updated the source code archive to include the new TESTFDC and .TD0 conversion utilities. Enjoy, Dave PS: I found this while fooling with and old 486 because I finally decided to see if I could get my Central Point DEluxe Options Board working - the TRANSCOPY that I had for it wouldn't run at all (froze during the analyze phase), but I downloaded one from the net which does, but I have been unsuccessful in actually recording and recreating a plain-jane DOS DD 360k disk - I've gotten it to complete the motions a couple of times but the result has errors in it. This is a 486/25 (slowest I could make it) - does anyone know if the CTP board will work reliably, or do I need to go slower... Any other common causes of problems...? Dave -- dave06a (at) Dave Dunfield dunfield (dot) Firmware development services & tools: www.dunfield.com com Collector of vintage computing equipment: http://www.classiccmp.org/dunfield/index.html