If you don’t have a specific preference we recommend you save your videos in mp4 format, as this is one of the most popular formats currently available, it is widely supported worldwide and does not require licensed codes that you have to pay for. Mp4 format comes with an excellent advanced compression system that allows for relatively small files while keeping a satisfactory quality level. If you want to download only a music file we recommend you save the file in mp3 format, which also combines a convenient compression with quality.