[MKV] je coince pour convertir un mkv en avi

Bonjour,
j'ai téléchargé ripp-it-after-me Ri4m, mkv extractgui, mkv toolnix, TMPGEnc, producer enfin tout qui va bien normalement, mais sa marche pas je suis nul !!!
voici ma config Ri4m:

Ripp-it_AM [ 5.0.1d ]
****************************************************

[ Video ]
DivX : OK [ 5.2.1.1328 ]
Xvid : - [ INTROUVABLE ]
X264 : - [ INTROUVABLE ]
VP6 : - [ INTROUVABLE ]
VP7 : - [ INTROUVABLE ]
DivX 3.11 : OK
Quicktime Alternative : - [ INTROUVABLE ]
ffdshow : OK [ 20060420 ]
----------------------------------------------------
[ Audio ]
CORE - AAC Codec : OK [ 1.1.0.642 ]
LAME - MP3 Codec : OK [ 0.0.9.0 ]
AC3 Filter : OK [ 1.0.1.0 ]
Ogg Vorbis : OK [ 0.9.9.5 ]
----------------------------------------------------
[ Miscs ]
PepsiCoda (Encoding) ON
PepsiCoda (re-encoding) OFF
Pack PSP/iPod/3GP : - [ INTROUVABLE ]
Ripp-it Codec Pack : OK [ v 4.2.0 ]
DVDFab Platinum : - [ INTROUVABLE ]
DVDFab Decrypter : - [ INTROUVABLE ]
Web Browser : C:\program files\Internet Explorer\iexplore.exe
----------------------------------------------------
[ AVISYNTH ]
AVIsynth.dll OK [ 2.5.6.0 ]
C:\Program Files\AviSynth 2.5\plugins\*.*
- colors_rgb.avsi OK
- DirectShowSource.dll OK
- TCPDeliver.dll OK
----------------------------------------------------
[ Matroska (MKV) ]
Matroska Pack : OK [ 1.1.2.1230 ]
MKVtoolnix : OK [ v1.6.0 ]
MUX MKV : C:\Program Files\Ripp-it_AM\MKVtoolnix\mkvmerge.exe : OK
DEMUX MKV GUI : C:\Program Files\Ripp-it_AM\MKVtoolnix\MKVEXTRACTGUI.exe : OK
MKVINFOS : C:\Program Files\Ripp-it_AM\MKVtoolnix\mkvinfo.exe : OK
DEMUX MKV : C:\Program Files\Ripp-it_AM\MKVtoolnix\mkvextract.exe : OK
----------------------------------------------------
[ Real Video (RV9/RV10 - .rmvb) ]
Real Alternative : - [ INTROUVABLE ]
CODEC RV9/10 : - [ INTROUVABLE ]
ENCODE RV40 : C:\Program Files\Ripp-it_AM\PRODUCER\producer.exe : OK [ 10.0.0.74 ]
----------------------------------------------------
[ MPEG 1/2 - (VCD/SVCD/DVD - .mpg .mp2) ]
ENCODE MPEG : C:\Program Files\Ripp-it_AM\TMPGEnc-2[1].524.63.181-Free\TMPGEnc.exe : OK [ 2.524.63.181 ]
----------------------------------------------------
[ NERO Burning Rom ]
NERO BURNING ROM: C:\Program Files\Ahead\NERO 60011\Nero\nero.exe : OK [ 6.0.0.11 ]
NERO COMMAND : C:\Program Files\Ahead\NERO 60011\Nero\NeroCmd.exe : OK