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Re: bytes per sector

nelsonbr <nelsonbr_(_at_)_cpsc_(_dot_)_ucalgary_(_dot_)_ca> wrote:

> How rare are drives that do not have a 512 byte sector size?

For practical purposes, you can consider them as nonexistent.

> Which operating systems do support odd sector sizes?

Apparently IBM's AS/400 systems use disks with 520 bytes/sector.
This is closed technology.

MFM/RLL disks (remember?) didn't have a native sector size.  I
remember formatting MFM disks with 256-byte sectors for use with
Acorn's ADFS and the built-in MFM controller on the Archimedes 4xx
series.  That was some ten years ago, and it was already highly
bizarre at the time.

PCs have always used 512-byte/sector hard disks.

Christian "naddy" Weisgerber                          naddy_(_at_)_mips_(_dot_)_inka_(_dot_)_de

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