Posted Sun Dec 17, 2023 7:09 pm
Just to share my experience as well: I got the FNX1591 out today, dug through pile of old wall warts and bigger PSUs to find a 12V 3.3a one (which basically made me feel really good about keeping all these stupid AC adapters all these years). Fired up a PC, downloaded the flash utility, downloaded the USB driver for the chip in the drive, and spent $8 on JiffyDOS for 1581. Took about a minute to flash at that point.
Tried a first disk, didn't format. Tried 5 HD disks, it liked them not at all. Finally found a good 3.5 DD disk, and it formatted no problem. (with HEADER command on C128). Used the 1581 disk utility tool image I found online to copy files from a 1571 to a 1581, then booted Lich King (my game) from that. It accesses the disk through the game. No problems I noticed.
I think it looks great, although I do admit I wish I had a 1581 style shell. but it looks a lot better than any 3D printed thing I could make (it's resin). And next the F256K, it looks perfect.