I believe it was a program called PUTR that I used on
a PC to read/write
5.25 floppy disks to exchange data with my PDP-11/23 that had an RX50
drive
in it. Should the PC drive be a 360k floppy or a 1.2m floppy?
1.2M. The RX50 is an 80-track single sided drive, so their is no way
to read or write the discs in a 40-track 360k drive. But a 1.2M drive
will work fine.