totem reports wrong movie dimensions, in properties, when playing DVD

Binary package hint: totem

If I play my DVD (recorded with a webcam that stores movies into mini-DVDs) with totem the movie is showed correctly, that is with the correct aspect ratio that in my case should be equal to 1024x576 (16:9 proportion), but the properties window shows a wrong movie dimension: 720x576 (4:3). I think it's the size of vob file
If I play the same dvd with, for example, mplayer I see the following output (from console)

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marco@dominus:~$ mplayer dvd://
MPlayer 1.0rc2-4.2.3 (C) 2000-2007 MPlayer Team
CPU: Intel(R) Core(TM)2 Duo CPU T5450 @ 1.66GHz (Family: 6, Model: 15, Stepping: 13)
CPUflags: MMX: 1 MMX2: 1 3DNow: 0 3DNow2: 0 SSE: 1 SSE2: 1
Compiled with runtime CPU detection.
mplayer: could not connect to socket
mplayer: No such file or directory
Failed to open LIRC support. You will not be able to use your remote control.

Playing dvd://.
*** Zero check failed in ifo_read.c:436
    for vmgi_mat->zero_3 = 0x00000000010000000000000000000000000000
There are 1 titles on this DVD.
There are 1 chapters in this DVD title.
There are 1 angles in this DVD title.
audio stream: 0 format: ac3 (stereo) language: unknown aid: 128.
number of audio channels on disk: 1.
number of subtitles on disk: 0
MPEG-PS file format detected.
VIDEO: MPEG2 720x576 (aspect 2) 25.000 fps 9400.0 kbps (1175.0 kbyte/s)
xscreensaver_disable: Could not find XScreenSaver window.
GNOME screensaver disabled
==========================================================================
Opening video decoder: [mpegpes] MPEG 1/2 Video passthrough
VDec: vo config request - 720 x 576 (preferred colorspace: Mpeg PES)
Could not find matching colorspace - retrying with -vf scale...
Opening video filter: [scale]
The selected video_out device is incompatible with this codec.
Try appending the scale filter to your filter list,
e.g. -vf spp,scale instead of -vf spp.
VDecoder init failed :(
Opening video decoder: [libmpeg2] MPEG 1/2 Video decoder libmpeg2-v0.4.0b
Selected video codec: [mpeg12] vfm: libmpeg2 (MPEG-1 or 2 (libmpeg2))
==========================================================================
==========================================================================
Forced audio codec: mad
Opening audio decoder: [liba52] AC3 decoding with liba52
Using SSE optimized IMDCT transform
Using MMX optimized resampler
AUDIO: 48000 Hz, 2 ch, s16le, 256.0 kbit/16.67% (ratio: 32000->192000)
Selected audio codec: [a52] afm: liba52 (AC3-liba52)
==========================================================================
AO: [pulse] 48000Hz 2ch s16le (2 bytes per sample)
Starting playback...
VDec: vo config request - 720 x 576 (preferred colorspace: Planar YV12)
VDec: using Planar YV12 as output csp (no 0)
Movie-Aspect is 1.78:1 - prescaling to correct movie aspect.
VO: [xv] 720x576 => 1024x576 Planar YV12
A: 4.0 V: 3.9 A-V: 0.006 ct: 0.111 552/552 8% 0% 0.7% 0 0
GNOME screensaver enabled

Exiting... (End of file)
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As you can see mplayer shows that it prescales to correct movie aspect (1024x576) the mpeg2 video 720x576.