Tubidy is a music and video download program designed to solve mobile users’ music downloading problems. The program is a service based on watching videos and downloading music from YouTube. If the music or video you want to download is on YouTube, you can download this music or video device via Tubidy, then play this video or music without internet connection. The videos, music, and theater works on YouTube are evaluated under the Law on Intellectual and Artistic Works. It is clearly stated that the crime of unauthorized copying, propagation or use of any copyrighted music or video in a material contained in these laws is forbidden. However, if you are not pursuing a commercial purpose, and want to download music or video for personal use, this is not a criminal offense.