Thus, several CDs in {HEAD ~ their envelopes} can be accommodated in {TAIL ~ each hanging file folder} without risk of scratching 
Thus , several CDs in { HEAD ~ their envelopes } can be accommodated in { TAIL ~ each hanging file folder } without risk of scratching
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH