Unfortunately, YouTube does not recognize common audio file extensions, such as .mp3, .mp4, .aac and so forth. Therefore, you cannot upload your tracks directly from your computer to the website's servers. Instead, you must first convert the audio files into video files that YouTube can recognize. use windows movie maker (included in your windows machine)... it can help you make beautiful slideshow or video clip(e.g. mixing your songs with pictures/video/lyric/etc).... then save it as video file such as wmv file format... finally upload