The tbl*.com programs are for people with disks that have parameters not
included in their PC's BIOS.  So, if you can choose a parameter that
will at least let you boot up, you can use one of these programs to generate
a program that tailors thing exactly.

For example, type 4 of the standard BIOS is a disk with 8 heads, 940 cylinders,
and write precomp starting at cyl 512.  If you have a disk with 1024 cylinders,
8 heads and no write precomp (like the Maxtor 1085), you can tell the BIOS
it's a type 4.  You run the fdins or fdintins program once, giving the
correct parameters.  They generate fdtbl1.com or fdtblin1.com, respectively.
Either of these latter programs suffices to tell DOS the *real* disk
parameters.  Why two programs? One program is a normal TSR, so it uses some
DOS memory.  The other uses 4 adjacent (configurable) interrupt vectors in
low memory to hold the table -- no DOS memory.  I prefer the latter approach,
but, it depends whether you have interrupts to spare or not.