DVD looks good in computer but not in DVD player

[Bigfoot73]

I have created a DVD with DVDauthor. On my machine (running Ubuntu 10.04) everything looks good, but not when I use it in my DVD player. The movies are in 16:9 format, which is also the format of my TV and my monitor.
On the TV there are black borders at the top and the bottom, so something is not right.

There is also something weird with the menu, which is in 4:3 format. Again it looks good on computer but not on TV. It seems to be stretched to something close to 16:9 and the leftmost part of my menu buttons are outside the screen.

This is the steps I have done:
1. Record the transport stream from TV (PAL 16:9, 720x576)
2. Using ProjectX to demux the streams: projectx -demux "rec.ts"
3. Multiplexing to DVD MPG format: mplex -f 8 -o rec.mpg rec.m2v rec.mp2
4. Done some cutting with Avidemux. (Cutting at key frames and choosing "Copy" for both audio and video.)
5. Creating the menu (from a 720x576 image):
jpeg2yuv -n 25 -I p -f 25 -j menu_bg.jpg | mpeg2enc -n p -f 8 -a 2 -o menu.m2v
mplex -f 8 -o /dev/stdout menu.m2v silent.mp2 | spumux -v 2 menu.xml > menu.mpg
6. Putting it all together: dvdauthor -x test.xml
7. Making an iso: mkisofs -dvd-video -o dvd.iso dvd/
8. Burning the iso file.

So what could be wrong here? I believe the aspect ratio are stored within the mpg streams and not affected by DVDauthor at all.

menu.xml, used by spumux:
<subpictures>
<stream>
<spu
force="yes"
start="00:00:00.00"
select="menu_select.png"
highlight="menu_highlight.png"
>
<button name="b1" x0="000" y0="000" x1="186" y1="120" up="b3" down="b3" />
<button name="b2" x0="186" y0="000" x1="360" y1="120" up="b4" down="b4" />
<button name="b3" x0="000" y0="120" x1="186" y1="226" up="b1" down="b1" />
<button name="b4" x0="186" y0="120" x1="360" y1="226" up="b2" down="b2" />
</spu>
</stream>
</subpictures>

test.xml used by DVDauthor:
<dvdauthor dest="./dvd">
<vmgm>
<menus>
<pgc entry="title">
<vob file="intro.mpg"/>
<post>jump titleset 1 menu;</post>
</pgc>
</menus>
</vmgm>
<titleset>
<menus>
<pgc entry="root">
<button name="b1"> jump title 1; </button>
<button name="b2"> jump title 2; </button>
<button name="b3"> jump title 3; </button>
<button name="b4"> jump title 4; </button>
<vob file="menu/menu.mpg" pause="inf"/>
</pgc>
</menus>
<titles>
<pgc>
<vob file="cut/091118cut.mpg"/>
<post> call menu; </post>
</pgc>
<pgc>
<vob file="cut/091119cut.mpg"/>
<post> call menu; </post>
</pgc>
<pgc>
<vob file="cut/091120cut.mpg"/>
<post> call menu; </post>
</pgc>
<pgc>
<vob file="cut/091204cut.mpg"/>
<post> call menu; </post>
</pgc>
</titles>
</titleset>
</dvdauthor>

[Psco2007]

Press the "format" button on the remote.
You probably have the tv set to the wrong resolution.

[Bigfoot73]

Shame on me, it was as simple as that. There was a setting in the dvd player set to 4:3 TV. I never realized that all dvd's I have watched lately were shown in the wrong aspect.
(Still have some problems with the menus, but that's another issue so I will make a new thread about that.)

[Psco2007]

Glad your problem was solved.