Writing DVD in windows 7 is so boring.Because it takes a so long time.It happens only when I use windows 7 default DVD writing software(built-in windows 7). I tried it in "Live File System" format.It took 3 hours to Burn a 4.7GB DVD.But when I try to burn a DVD with third party softwares like Nero, it takes more or less 30minutes.Where is the fault.