Maybe Im doing something wrong, but since the day i purchased ( witch is around june) rekordboxdj I have been trying to use it by simply creating a playlist, and drag and drop some of the songs to playlist. after plenty of tries i realized that all my mp4 songs wouldnt simply drag and drop to playlist. I use to do alot of video djing before so I have lots of mp4 version of songs. now i converted one song to mp3 and it went without any hitch. so is there any place in setting i need to change for my mp4 to drop normaly. i don't want to play videos at this time, but at the same time don't want to convert 10,000 songs that already have. I mean couple of my friends told me this a great software that is why i got it. I have been using serato scratch then moved to seratodj and they never gave me an issue for my playlist . to me most important part is setting up playlist for private parties and wedding. I gave up using rekordbox for while just for that simple reason. if anyone can help me to solve this issue, I would really appreciated. I would love to use this software at least in one gig