Data transfer system

A data transfer system comprising:

• a data compressing apparatus;
• and
• a data decompressing apparatus, the data compressing apparatus comprising:
• a data compressing section which applies compression to uncompressed electronic data to obtain compressed electronic data;
• and
• a data output section, which, if the compression achieves predetermined targeted compression, outputs compressed electronic data obtained by the data compressing section, and if the compression does not achieve the targeted compression, outputs uncompressed electronic data which is not subjected to the compression,
• the data decompressing apparatus comprising:
• a data receiving section which receives electronic data from the data compressing apparatus;
• and
• a transferring section which, if the electronic data received at the receiving section is compressed electronic data, decompresses the electronic data and transfers the decompressed data to a predetermined destination, and if the electronic data received at the receiving section is uncompressed electronic data, transfers the electronic data to the destination as is.