Black Bars at top and bottom of image

I'm encoding a PAL dvd in TMPG using DVD2AVI as the frameserver, everything works fine the video is great quality, except TMPG puts 2 black lines accross the top and bottom of the movie. The movie is the correct size on the screen and nothing is cut off, but there is 2 black bar accross the top and bottom of the movie, they are about 2cm wide on my 17inch screen, when viewing the mpeg in full screen from power dvd. The are also there in the preview while TMPG is encoding. How do I get rid of them?

I suppose TMPGEnc puts them there to maintain a correct aspect ratio. If the borders weren't there, the picture would be too tall. Like SansGrip said in the Avisynth forum recently, the black borders are your friends. They compress extremely well and therefore you'll get more bitrate on the video itself.

ok thanks, I thought they may have been cause by me doing sothing wrong. I wont worry about them now.

No matter how hard I try I cannot encode without, either having the black bars or streching the video to fill the space where the black bars are. When I set TMPG's "aspect ratio" to 16:9 and "scorce aspect ratio" to 16:9 625 line (PAL) The resulting m2v is in 4:3(the video is 16:9) if I leave the "aspect ratio" at 4:3 the video fill's the 16:9 and the balck bars make it up to 4:3.