It depends on the format of the video stream you output. Thus, a video converter is what you need, I highly recommend you use the Dumpmedia Video Converter, It can support many video file formats, such as MP4, MOV, WMV, AVI, MKV, FLV, 3GP, MPEG and other regular video formats are available.here is an article about An Easy Guide On How To Convert YouTube Online Videos to MP4, I hope it can help you.