The main materials used to produce LP records are a vinyl copolymer, a stabilizer, a lubricant, and a pigment, usually carbon black. The latter produces the traditional black color, but other colors including white have been used. These are compounded and extruded or fed into the press in the form of small cakes. Disc material is subject to two types of deformation during playing: elastic, from which it returns, hence is temporary; and plastic, which is permanent, in case of records it is termed “wear”.
"You recently converted an LP to CD for me. The results are nothing short of Spectacular! I am amazed at how 'clean' and 'robust' the results are and I am enjoying listening to this CD as if it was just cut. Thank you for this 'Memory Lane' heirloom."