Hi, there

I have wrote a bin file which will show message 'test program'
to floppy at boot sector 7c00h.

then i restart and insert that floppy to my computer
I have seen that my computer read my floppy, but nothing happen

I dont know what's wrong???
maybe ....

Code:
.........
mov ah,03h
... sctor, cylinder, blah blah ...
mov bx,offset handle 
......
I'm not sure that is it wrote complete bin file to floppy or not.
I think using offset should be correct.

Any idea?
Thanks for advance