ASM Community

I just want to know if there is some way to acces the disk at low level, i mean cylinder-head-sector form or something like that

thanks

http://www.t13.org has all previous and to be released information on the ata/atapi protocols, if what you're seeking is truely low level then this will gain you access better than int 13h in dos.
however, if you want this kinda of access; it remains generally blocked in protected mode.

-ras