I'm supposed to be taking some select youtube videos off of youtube and saving them to an external hard drive for work. I got a program called "Tubesock" and I can get the files, and they're Mp4, but when I play them it only plays audio, it doesn't play video. I also got a different program, which is just a plugin for Firefox, and ripped the video straight into Flash format then converted it to Mp4, but the same thing happens.
Has anyone else had this problem? Is there something I'm doing wrong? Halp!