I cant get it to work, and the %HDD_total is something i used befor, i trying to change all my alias for something faster.
Code:
alias hd {
  var %x = 99
  while (%x <= 122) {
    if ($disk($chr(%_zd)).type == cdrom) { return CD-Rom }
    return $calc($bytes($disk($chr(%x)).size,g))
    inc %x
  }
}

the code wont loop true all disk's, it send me the size of C no mather what.. smirk