etxtorn@juno11.ericsson.se (Thomas Tornblom Konsult TM/JU 99367) (05/30/90)
I know this isn't the newsgroup but I couldn't let this pass... In article <711@zinn.MV.COM> mem@zinn.MV.COM (Mark E. Mallett) writes: ... >That's true for the original, flat-directory filesystem discs. You simply >can not read them on standard floppy devices. > >However, Macs that can read/write 1.44MB 3-1/2" floppies use standard >drives and controllers, but also have a fairly elaborate directory >structure with a couple of B-tree index files. This is called the >Hierarchical File System. (See your Inside Mac, volume 5 I think.) > The filesystem has nothing to do with the type of drive you have in your mac. MFS (the old flat filesystem) was long ago abandoned), my old + has the 800K drive and has had HFS from the time I inserted the first disk. The hi-density drive (FDHD, 1.4M) is NOT a standard drive, it can read/write the old 800K format.