The viewer may also include {TAIL ~ memory} into which a file or {HEAD ~ files} are downloaded for subsequent viewing 
The viewer may also include { TAIL ~ memory } into which a file or { HEAD ~ files } are downloaded for subsequent viewing
OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL REL OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL REL OTH OTH OTH