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`dd' for making diskettes.

 I think that:

   dd of=/dev/fd0 bs=1024 count=1440 if=<image>.bin

 is faster than:

   dd of=/dev/fd0 if=<image>.bin

 When I use the first form, it prints the `1440 records in' &c
 messages right away, even before the floppy drive spins up much.  I
 think it buffers everything then.  it still doesn't give me my shell
 prompt back until after everything is written to disk.  It seems to
 take a little less time to write the image also.

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