Advertise a time and place where residents can gather to exchange old CDs. This program works great at the beginning of the year because it helps people meet others. This program can also be expanded to include movies, tapes, and computer games. A number of CD players are needed. One can be used to play loud music while others can be used to check the quality of CDs being traded.
Refreshments are always nice.
Word of mouth advertising is sometimes best for this program. Tell everyone you know about it.