Hi everyone! I'm new to the PC9801 scene and after reading several good articles on these message boards I still have a few questions left which I hope someone can answer. This isn't game related but rather software used in Japan's motorsport. I recently bought an dedicated EPROM pogrammer to reprogram the ECU of my car. When it arrived it came with 4 3.5" floppy's and a manual stating I need either a NEC PC9801 or EPSON PC286 to use the included software. After googling these terms and reading some interesting topics here I decided to see if any of my (all windows based PC's) floppy drives would be able to read the data to back-up. (I'm aware now I need a 3-mode drive) Unfortunately I have no such luck, various operating systems give various faults. I don't have a actual PC98 machine (yet) Here's what I've tried so far: Dell Optiplex GX270 with windowx XP 32 (No 3-mode available in BIOS) MSI K9mm-V with windowx XP64 (1.2MB available in BIOS but only at 5,25" drive) MSI Sniper M5 (USB floppy only) These are the drives I've tried so far between the various PC's: USB Toshiba PA3109U-1FFD Mitsumi D359T5 Mitsumi D359T6 Sony MPF420-1 NEC FD1231M TEAC FD235HG-C629 Software: Omniflop w drivers & registration Disk Immage 13B VIA 3-mode FDC drivers Disk Image 13b with internal & external drive gives an exeption C00000014 when I try to read the disc on both 32 and 64 bit systems, it's like it doesn't even recognize there's a disk in there. Formatting a IBM 3.5 1,44MB floppy to 1.2MB works fine under the command prompt so that showd at lease the USB drive is 3-mode compatible right? Omniflop claims to recognize the floppy but then when I try to safe the data it throws and error about the disk not being formatted. (only in 32bit versions, winx xp 64 bit gives an error when testing the installation) To be honest I have no other evidence the disks are in fact 1.2MB but standard MS windows won't read them. They could be a different format altogether. My questions are then as follows: Do I need a PC with 3-mode support in the BIOS (I assume only for the internal drives, not for the USB one) for the USB drive, would I need any special drivers? (like with omniflop you need to install a 3-mode FDD or FDC driver) If everything else fails I might just get a PC9801 from Japan, I assume all PC9801/PC9821 with 3.5" floppy's will then recognize the disks in that case? (The manual also states the PC9801N & 9801NS laptops can be used to give you an idea of the vintage) Any help would be much appreciated!