I am trying to convert some files I have to DVD. The files have .mpg as an extention and in the "From" window are listed as MPG. The other info window reads:

mpeg-2, 720x576, 1287 kbps, 25 fps

The sound is:

mp2, 44100Hz, 128 kbps

They are in PAL format. I need them in NTSC so first I conver them to avi/divx NTSC then to DVD. Every now and then this works but most often only half the file will convert, let's say 24 mins out of a 42 min file. Is there something else I should be doing?