Unpack error, maybe it's normal, or not

[sambo]

Hello here

I have a problem, i cant read any video included in rar files.
Each time i got this error:

DEBUG 2013-05-03 22:17:59.420 [Thread-11] frame= 1 fps=0.0 q=0.0 Lsize=N/A time=00:00:00.04 bitrate=N/A dup=0 drop=21
DEBUG 2013-05-03 22:17:59.420 [Thread-11] video:15kB audio:0kB subtitle:0 global headers:0kB muxing overhead -100.147206%
DEBUG 2013-05-03 22:17:59.426 [Rar Extractor] Unpack error, maybe it's normal, as backend can be terminated: unkownError

Any test i can do to check that error message deeper?

When am doing : unrar p -inul files.rar |mplayer -

libavformat file format detected.
[matroska,webm @ 0x90c0da0] Estimating duration from bitrate, this may be inaccurate
[lavf] stream 0: video (h264), -vid 0
[lavf] stream 1: audio (dca), -aid 0, -alang fre, French DTS 1509kbps
VIDEO: [H264] 1920x1040 0bpp 24.000 fps 0.0 kbps ( 0.0 kbyte/s)

So the unrar command itself sounds ok.


Thanks