On Wed, Aug 12, 2015 at 1:36 PM, Chuck Guzis <[email protected]> wrote: > My drives are configured to take either index signal--so it doesn't matter > if the media is coded as SS or DS. Many floppy drives can do this.
Some 8-inch double-sided drives don't care about which index sensor is active, other than to output the appropriate logic level on the TWO SIDED interface signal, but will let you read and write both sides of single-sided media. Some drives, like the Mitsubishi M2896-63, can be configured to suppress the READY output if the second side of a single-sided disk is selected, or to ignore the sidedness of the medium. Mitsubishi refers to this as "Ready Standard" vs. "Ready Modified".
