Clusters are the smallest unit of memory that the VS-1680 uses to manage data on a disk drive. The smallest physical units on a disk drive are called either sectors or blocks, and depending on the device, the size that is handled can be
selected.

For example, the VS-1680 is designed to use disks with 512 bytes/sector. When the VS-1680 manages song data, it handles 64 sectors as a single unit (cluster). This means that 512 (bytes) x 64 (sectors) = 32768 bytes (32 kilobytes)
is one cluster.