45's and 78's, briefly, 4 letters
Cassette recorder button abbrs., 4 letters
CDs and LPs, 4 letters
Goes over again, 4 letters
Halls and rooms head, informally, 4 letters
Hi-fi spinners: Abbr., 4 letters
LP's and CD's: Abbr., 4 letters
LP's: Abbr., 4 letters
LPs, 4 letters
News windups, 4 letters
RCA products: Abbr., 4 letters
Stat holders, 4 letters
Stats, 4 letters
Suggested Web sites, for short, 4 letters