I have a mac not pc so I could convert them to mkv or mp4 or avi easily with VisualHub. All takes time of course and usually I get up early and take my External notebook drive from the bedroom, plug it into the Media Centre PC in the lounge and transfer say the F1 or MotoGP or whatever I recorded while making breakfast. Even a 9GB file only takes a few minutes. then back to the bedroom to watch it. Having to get my wireless keyboard and sit down and convert it would take a lot of time. We're off to work by then.