There is only one i/o based interface posssible. The MSX system has reserved i/o adresses for an fdd controller, older disk interfaces are i/o based and assigns always A,B drive. Also, it seems modern Windows versions do not support capacities lower then 720kB, although that is not a problem for Linux. As such you may be able to read and write data to an MSX disk from a PC, but some newer drives, particular USB diskette drives may have problems with non-HD (1.44MB) capacities. The filesystem used for disks is FAT12, which is compatible with the IBM PC. ![]() Some interfaces accept a 5.25" 80 tracks 720 kB disk, for example the Philips NMS 1200. The 5.25" 1.2MB HD variation was never used on MSX. There was no standardised naming convention, as such every vendor used its own. They had some popularity in Brazil, but other then that quickly vanished from the market. However, it is typically possible to use HD media and format it to lower capacity, but it is strongly recommended in that case to cover up the "HD" hole with a non-translucent tape, to prevent HD capable disk drives from getting confused.Ī 3.5" disk formatted with a density of 180kB or 360kB (SS,DD) can also be read by an 720kB drive, it's been tested on an MSX turbo R.ĥ.25" drives existed in 180kB (single sided) and 360kB (double sided) capacities. The later 1.44MB (HD) type was never supported on MSX, except by the Daisen Sangyo MX-2021 with its interface MX30B (ultra rare). Initial 3.5" disks on the MSX were single-sided (1DD), and could therefore only store 360kB, later models used double-sided drives (2DD) which can store 720kB.
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