sentences:  At the time, as a cost-cutting measure, most industry record pressing plants were using recycled or "reground" vinyl, taking old and unsold records, removing their paper labels, then melting them down and reusing the plastic components to make new records.Such "reground" vinyl records typically sounded much noisier than a record made from new or "virgin" vinyl; collectors noted that "reground" records sometimes had small remnants of paper labels embedded in the outer edge of the LP.RCA's Dynaflex records varied somewhat in thickness, but most literally "flopped" back and forth when held between the hands.