For starters, I’ve downloaded somewhere around 9,000 songs over the past 48 hours. At 4 minutes per song that's 36,000 minutes/600 hours/25 DAYS worth of music. From those I'll be picking the best of the best, listening to each one that I select (to make sure it's not screwed up or mislabeled) and then placing them in a queue. These songs are in addition to the ones I already have in my personal collection — all my old 80's, party, and dance CDs that I've ripped to MP3 over the years. I've also been searching the web for lists of "popular wedding reception songs", ensuring that I have all of those songs on hand as well. While mathematically the vast majority of the songs I have pulled will not make it into the four-hour-long playlist, I will have all of them with me just in case someone requests one of them. Andy and Lea like 80's music, dance music, and country music, so I am creating a playlist that contains an equal number of songs from all three of these genres, but with extra songs on hand I can change the playlist on the fly (thanks to the software I'm using) depending on the mood of the crowd and the party.