Large: This mode is also sometimes called "ECHS" mode, standing for "Extended CHS". This mode uses translation to ensure that the number of cylinders is less than 1,024. However, unlike LBA, it does not then number the sectors linearly, it refers to the disk using the translated cylinder, head and sector values. This is a valid way to deal with larger hard disks, however it is very rarely used and is now considered non-standard. Using this mode is therefore not generally recommended.