Files are divided in full "chunks" of 9,728,000 bytes (9500 KiB) plus a remainder chunk, and a separate 128-bit MD4 checksum is computed for each. That way, if a transmission error is detected, only one chunk is corrupted instead of the whole file. Furthermore, valid downloaded chunks are available for sharing before the rest of the file is downloaded, speeding up the distribution of large files throughout the network. A file's identification checksum is computed by concatenating the chunks' MD4 checksums in order and hashing the result. In cryptographic terms, the list of MD4 checksums is a hash list, and the file identification checksum is the "root hash", also called top hash or master hash.