The multimedia data may include {HEAD ~ audio content}, video content, compressed multimedia data, uncompressed multimedia data, downloaded data, streaming data, {TAIL ~ online data}, and free data 
The multimedia data may include { HEAD ~ audio content } , video content , compressed multimedia data , uncompressed multimedia data , downloaded data , streaming data , { TAIL ~ online data } , and free data
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH