Neither Mplayer nor Totem work with the codecs any more

I can play both fine on i386. What architecture are you using?

With both mplayer-nogui and totem-xine that is.

my architecture is i386

mplayer is Version: 2:0.99+1.0pre8-0ubuntu6
totem-xine is Version: 2.16.1-1ubuntu1

I've noticed that if I try to play the files from the command line in mplayer they work. If use them from the GUI they don't

here is the output of the command line when they work:
alberto@alberto-desktop:~/codec/codecnew$ mplayer /media/hdc5/alberto/Shared/"DragonBall Z - Movie 14 - History of Trunks.avi"
MPlayer 2:0.99+1.0pre8-0ubuntu6 (C) 2000-2006 MPlayer Team
CPU: AMD Athlon(tm) 64 Processor 3500+ (Family: 15, Model: 47, Stepping: 0)
CPUflags: MMX: 1 MMX2: 1 3DNow: 1 3DNow2: 1 SSE: 1 SSE2: 1
Compiled with runtime CPU detection.

Linux RTC init error in ioctl (rtc_irqp_set 1024): Permission denied
Try adding "echo 1024 > /proc/sys/dev/rtc/max-user-freq" to your system startup scripts.
Opening joystick device /dev/input/js0
Can't open joystick device /dev/input/js0: No such file or directory
Can't init input joystick
Setting up LIRC support...
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 /media/hdc5/alberto/Shared/DragonBall Z - Movie 14 - History of Trunks.avi.
ASF file format detected.
VIDEO: [MP43] 320x240 24bpp 1000.000 fps 0.0 kbps ( 0.0 kbyte/s)
Clip info:
 name: Dragon Ball Z - Movie 14 - History Of Trunks
==========================================================================
Opening audio decoder: [ffmpeg] FFmpeg/libavcodec audio decoders
AUDIO: 44100 Hz, 2 ch, s16le, 128.0 kbit/9.07% (ratio: 16005->176400)
Selected audio codec: [ffwmav2] afm: ffmpeg (DivX audio v2 (FFmpeg))
==========================================================================
open: No such file or directory
Couldn't open: /dev/mga_vid
open: No such file or directory
Couldn't open: /dev/mga_vid
[VO_TDFXFB] Can't open /dev/fb0: Permission denied.
[VO_3DFX] Unable to open /dev/3dfx.
==========================================================================
Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
Selected video codec: [ffdivx] vfm: ffmpeg (FFmpeg DivX ;-) (MS MPEG-4 v3))
==========================================================================
alsa-init: using device default
alsa: 44100 Hz/2 channels/4 bpf/65536 bytes buffer/Signed 16 bit Little Endian
AO: [alsa] 44100Hz 2ch s16le (2 bytes per sample)
Starting playback...
VDec: vo config request - 320 x 240 (preferred colorspace: Planar YV12)
VDec: using Planar YV12 as output csp (no 0)
Movie-Aspect is undefined - no prescaling applied.
VO: [xv] 320x240 => 320x240 Planar YV12
alsa-uninit: pcm closed 0.069 ct: 0.002 397/397 2% 0% 0.9% 1 0

Exiting... (Quit)

If I try to play the same file from the command line with Totem (xine):

the command line says:

 totem /media/hdc5/alberto/Shared/"DragonBall Z - Movie 14 - History of Trunks.avi"
** Message: w 620 h 436 sidebar 200
Loading codec DLL: 'divxa32.acm'
Loaded DLL driver divxa32.acm
Loading codec DLL: 'divxc32.dll'
Loaded DLL driver divxc32.dll
** Message: w 620 h 436 sidebar 200
Total Unfree 4296 bytes cnt 2 [(nil),0]

But the gui says:

Totem could not play 'file:///media/hdc5/alberto/Shared/DragonBall Z - Movie 14 - History of Trunks.avi'.

Video codec 'MS MPEG-4 V3 (win32)' is not handled. You might need to install additional plugins to be able to play some types of movies

Ok, I have installed totem-gstreamer and reinstalled totem-xine and now I can play my videoclips again. It looks like this "libxine-extracodecs" was uninstalled by some other application (I guess)

I have another problem with Mplayer when I play another file (which works just fine now). I complains about this:

Error
Requested audio codec family [mp3] (afm=mp3lib) not available. Enable it a compilation

But the file plays smoothly

I'm going to close this bug as you have resolved your problem.

If the mp3 message is a bug please file another bug report.