On 2/22/22 19:43, Jay Jaeger via cctalk wrote: > Writing a 360KB or RX50 diskette with a 1.2MB drive is a path to a lot > of frustration. Not only do you have to double step the drive (software > often takes care of that part), but the tracks written will be narrower > than a real RX50 / 306KB drive, providing a smaller signal/noise ratio. > And, if you don't start with completely magnetically erased media, any > left over junk in any data left over may be picked up by the RX50 head.
The RX50 format is a single-sided 96 tpi one, vix: The format used on a RX50 disk is: single sided 80 tracks 10 sectors per track 96 tpi (tracks per inch) 300 rpm (revolutions per minute) 250 KHz data rate >From http://home.iae.nl/users/pb0aia/vax/rx50.html This is very different from the PC 360K format, which is double-sided 40 tracks 9 sectors per track 48 tpi 300 rpm 250 Khz data rate. A "1.2M" disk drive normally spins at 360 RPM, so you have to set the data rate at 300 Khz. --Chuck