the main difference between message stream and byte stream is the message boundary. Also the message stream will keep track of the message boundaries but the byte stream dos not.
consider in network the 1024 bytes of data are transmitted to the host, then after a min another 1024 bytes has transmitted to the same host then the receiver will receive totally 2048 bytes of data.
in this transmission the message stream will send two different 1024 bytes of messages while in byte stream will transfer the full 2048to the receiver as a single unit.
Ex. Of message stream is sequence of pages.
Ex. of the byte stream downloading a song or a movie.
