In article <17226.41052.150085.271523@srapc2586.sra.co.jp>
soda@sra.co.jp wrote:

> > all of the devices that I know of with such restrictions on writing have
> > a sector size of 512 bytes or larger, so this isn't an issue in practice.
> 
> Well, some older pc98 uses 256bytes/sector.
> Of course, currently pc98 isn't supported by NetBSD, though...

hp300 has 256bytes/sector SCSI FDD:
---
sd0 at scsibus0 target 0 lun 0: <TEAC, FC-1     HF   07, RV A> disk removable
sd0: 1280 KB, 80 cyl, 2 head, 32 sec, 256 bytes/sect x 5120 sectors
sd0: async, 8-bit transfers
---
and currently it can't be used on NetBSD...
---
Izumi Tsutsui