Merci pour ta réponse. ^^
Oui, j'ai essayé avec deux DVDs... même problème.

J'ai donc installé ce fameux codecsniper. Il me trouve tout ça:
0#Direct Show#DivX Decoder Filter#C:\WINDOWS\system32\divxdec.ax#-#6.5.1.0#ok
1#Direct Show#WMT MuxDeMux Filter#C:\Program Files\Movie Maker\wmm2filt.dll#-#2, 1, 4026, 0#ok
2#Direct Show#Vorbis Decoder#C:\WINDOWS\system32\OggDS.DLL#-#0, 9, 9, 5#ok
3#Direct Show#CyberLink Audio Decoder#C:\Program Files\HP\QuickPlay\Kernel\Movie\CLAud.ax#-#6.00.1914#ok
4#Direct Show#Screen Capture filter#C:\WINDOWS\system32\wmpsrcwp.dll#-#11.0.5721.5145 (WMP_11.061018-2006)#ok
5#Direct Show#WMT AudioAnalyzer#C:\Program Files\Movie Maker\wmm2filt.dll#-#2, 1, 4026, 0#ok
6#Direct Show#Matroska Muxer#C:\Program Files\Matroska Pack\MatroskaMuxer.ax#-#1, 0, 0, 9#ok
7#Direct Show#Indeo® video 5.10 Compression Filter#C:\WINDOWS\system32\ir50_32.dll#-#R.5.10.15.2.55#ok
8#Direct Show#CyberLink TimeStretch Filter#C:\Program Files\HP\QuickPlay\Kernel\Movie\clauts.ax#-#1.0.3111#ok
9#Direct Show#Windows Media Audio Decoder#C:\WINDOWS\system32\msadds32.ax#-#8.00.00.4487#ok
10#Direct Show#RealVideo Decoder#C:\Program Files\Matroska Pack\RealMediaSplitter.ax#-#1, 0, 1, 0#ok
11#Direct Show#AC3 Parser Filter#C:\WINDOWS\system32\mpg2splt.ax#-##ok
12#Direct Show#WMT Format Conversion#C:\Program Files\Movie Maker\wmm2filt.dll#-#2, 1, 4026, 0#ok
13#Direct Show#WMT Black Frame Generator#C:\Program Files\Movie Maker\wmm2filt.dll#-#2, 1, 4026, 0#ok
14#Direct Show#HP Frame Grabber Filter#c:\Program Files\HP\Digital Imaging\bin\hpqdsftr.ax#-#060.000.087.000#ok
15#Direct Show#Indeo® video 5.10 Decompression Filter#C:\WINDOWS\system32\ir50_32.dll#-#R.5.10.15.2.55#ok
16#Direct Show#WMT Screen Capture filter#C:\Program Files\Movie Maker\wmm2filt.dll#-#2, 1, 4026, 0#ok
17#Direct Show#Microsoft Screen Video Decompressor#C:\WINDOWS\system32\msscds32.ax#-#8.00.00.4487#ok
18#Direct Show#MPEG Layer-3 Decoder#C:\WINDOWS\system32\l3codecx.ax#-#1, 5, 0, 50#ok
19#Direct Show#MPV Decoder Filter#C:\Program Files\Combined Community Codec Pack\Filters\Mpeg2DecFilter.ax#-#1, 0, 0, 3#ok
20#Direct Show#MPEG-2 Splitter#C:\WINDOWS\system32\mpg2splt.ax#-##ok
21#Direct Show#AAC Parser#C:\WINDOWS\system32\aac_parser.ax#-#1.1#ok
22#Direct Show#ACELP.net Sipro Lab Audio Decoder#C:\WINDOWS\system32\acelpdec.ax#-#1.40#ok
23#Direct Show#HP MPEG-1 Encoder#c:\Program Files\HP\Digital Imaging\bin\hpqdsftr.ax#-#060.000.087.000#ok
24#Direct Show#WavPack Audio Decoder#C:\Program Files\Combined Community Codec Pack\Filters\WavPackDSDecoder.ax#-#1, 0, 3, 431#ok
25#Direct Show#File Source (Netshow URL)#C:\WINDOWS\system32\wmpasf.dll#-#11.0.5721.5145 (WMP_11.061018-2006)#ok
26#Direct Show#WMT Import Filter#C:\Program Files\Movie Maker\wmm2filt.dll#-#2, 1, 4026, 0#ok
27#Direct Show#Bitmap Generate#C:\Program Files\Movie Maker\wmm2filt.dll#-#2, 1, 4026, 0#ok
28#Direct Show#Windows Media Video Decoder#C:\WINDOWS\system32\wmvds32.ax#-#8.00.00.4487#ok
29#Direct Show#CoreFLAC Audio Source#C:\Program Files\Matroska Pack\CoreFLACDecoder.ax#-#0, 4, 0, 46#ok
30#Direct Show#Windows Media Video Decoder#C:\WINDOWS\system32\wmv8ds32.ax#-#8.0.0.4000#ok
31#Direct Show#Haali Media Splitter#C:\Program Files\Combined Community Codec Pack\Filters\splitter.ax#-#1.6.224.23#ok
32#Direct Show#Haali Media Splitter (AR)#C:\Program Files\Combined Community Codec Pack\Filters\splitter.ax#-#1.6.224.23#ok
33#Direct Show#WMT VIH2 Fix#C:\Program Files\Movie Maker\wmm2filt.dll#-#2, 1, 4026, 0#ok
34#Direct Show#Record Queue#C:\Program Files\Movie Maker\wmm2filt.dll#-#2, 1, 4026, 0#ok
35#Direct Show#CoreFLAC Audio Decoder#C:\Program Files\Matroska Pack\CoreFLACDecoder.ax#-#0, 4, 0, 46#ok
36#Direct Show#CyberLink Demultiplexer (HP_QP2005)#C:\Program Files\HP\QuickPlay\Kernel\Movie\CLDemuxer.ax#-#1.0.3113 #ok
37#Direct Show#Windows Media Multiplexer#C:\WINDOWS\system32\wmpasf.dll#-#11.0.5721.5145 (WMP_11.061018-2006)#ok
38#Direct Show#ASX file Parser#C:\WINDOWS\system32\wmpasf.dll#-#11.0.5721.5145 (WMP_11.061018-2006)#ok
39#Direct Show#ASX v.2 file Parser#C:\WINDOWS\system32\wmpasf.dll#-#11.0.5721.5145 (WMP_11.061018-2006)#ok
40#Direct Show#NSC file Parser#C:\WINDOWS\system32\wmpasf.dll#-#11.0.5721.5145 (WMP_11.061018-2006)#ok
41#Direct Show#True Audio Decoder#C:\Program Files\Matroska Pack\TTADSDecoder.ax#-#1, 0, 0, 157#ok
42#Direct Show#CoreAAC Audio Decoder#C:\WINDOWS\system32\CoreAAC.ax#-#1, 2, 0, 575#ok
43#Direct Show#Windows Media source filter#C:\WINDOWS\system32\wmpasf.dll#-#11.0.5721.5145 (WMP_11.061018-2006)#ok
44#Direct Show#Frame Eater#C:\Program Files\Movie Maker\wmm2filt.dll#-#2, 1, 4026, 0#ok
45#Direct Show#WST Decoder#C:\WINDOWS\system32\wstdecod.dll#-#5.3.2600.2180 (xpsp_sp2_rtm.040803-2158)#ok
46#Direct Show#Haali Video Renderer#C:\Program Files\Combined Community Codec Pack\Filters\dxr.dll#-##ok
47#Direct Show#RealMedia Source#C:\Program Files\Matroska Pack\RealMediaSplitter.ax#-#1, 0, 1, 0#ok
48#Direct Show#DivX Decoder Filter#C:\WINDOWS\system32\divxdec.ax#-#6.5.1.0#ok
49#Direct Show#LEAD MCMP/MJPEG Codec#c:\Program Files\HP\Digital Imaging\bin\LCodcCMP.dll#-#1.0.0.021#ok
50#Direct Show#LEAD MCMP/MJPEG Decoder#c:\Program Files\HP\Digital Imaging\bin\LCodcCMP.dll#-#1.0.0.021#ok
51#Direct Show#WMT Sample Information Filter#C:\Program Files\Movie Maker\wmm2filt.dll#-#2, 1, 4026, 0#ok
52#Direct Show#VBI Surface Allocator#C:\WINDOWS\system32\vbisurf.ax#-#5.3.2600.2180 (xpsp_sp2_rtm.040803-2158)#ok
53#Direct Show#Microsoft MPEG-4 Video Decompressor#C:\WINDOWS\system32\mpg4ds32.ax#-#8.00.00.4487#ok
54#Direct Show#DivX Demux#C:\WINDOWS\system32\DivXMedia.ax#-#0.0.0.028#ok
55#Direct Show#Vorbis Encoder#C:\WINDOWS\system32\OggDS.DLL#-#0, 9, 9, 5#ok
56#Direct Show#Ogg Multiplexer#C:\WINDOWS\system32\OggDS.DLL#-#0, 9, 9, 5#ok
57#Direct Show#Haali Simple Media Splitter#C:\Program Files\Combined Community Codec Pack\Filters\splitter.ax#-#1.6.224.23#ok
58#Direct Show#WMT Log Filter#C:\Program Files\Movie Maker\wmm2filt.dll#-#2, 1, 4026, 0#ok
59#Direct Show#WMT Virtual Renderer#C:\Program Files\Movie Maker\wmm2filt.dll#-#2, 1, 4026, 0#ok
60#Direct Show#DirectVobSub#C:\Program Files\Combined Community Codec Pack\Filters\VSFilter.dll#-#1, 0, 1, 3#ok
61#Direct Show#RealAudio Decoder#C:\Program Files\Matroska Pack\RealMediaSplitter.ax#-#1, 0, 1, 0#ok
62#Direct Show#CyberLink Line21 Decoder Filter#C:\Program Files\HP\QuickPlay\Kernel\Movie\CLLine21.ax#-#4.0.5513 #ok
63#Direct Show#DirectVobSub (auto-loading version)#C:\Program Files\Combined Community Codec Pack\Filters\VSFilter.dll#-#1, 0, 1, 3#ok
64#Direct Show#Haali Matroska Muxer#C:\Program Files\Combined Community Codec Pack\Filters\splitter.ax#-#1.6.224.23#ok
65#Direct Show#Tivo DirectShow Source Filter#C:\Program Files\Fichiers communs\TiVo Shared\DirectShow\TiVoDirectShowFilter.dll#-#1.0#ok
66#Direct Show#AC3Filter#C:\Program Files\AC3Filter\ac3filter.ax#-#1.01a#ok
67#Direct Show#.RAM file Parser#C:\WINDOWS\system32\wmpasf.dll#-#11.0.5721.5145 (WMP_11.061018-2006)#ok
68#Direct Show#WMT DirectX Transform Wrapper#C:\Program Files\Movie Maker\wmm2filt.dll#-#2, 1, 4026, 0#ok
69#Direct Show#G.711 Codec#C:\WINDOWS\system32\g711codc.ax#-#5.1.2600.0 (xpclient.010817-1148)#ok
70#Direct Show#MPEG-2 Demultiplexer#C:\WINDOWS\system32\mpg2splt.ax#-##ok
71#Direct Show#Indeo® audio software#C:\WINDOWS\system32\iac25_32.ax#-#2.05.53#ok
72#Direct Show#Windows Media Update Filter#C:\WINDOWS\system32\wmpasf.dll#-#11.0.5721.5145 (WMP_11.061018-2006)#ok
73#Direct Show#ASF DIB Handler#C:\WINDOWS\system32\wmpasf.dll#-#11.0.5721.5145 (WMP_11.061018-2006)#ok
74#Direct Show#ASF ACM Handler#C:\WINDOWS\system32\wmpasf.dll#-#11.0.5721.5145 (WMP_11.061018-2006)#ok
75#Direct Show#ASF ICM Handler#C:\WINDOWS\system32\wmpasf.dll#-#11.0.5721.5145 (WMP_11.061018-2006)#ok
76#Direct Show#ASF URL Handler#C:\WINDOWS\system32\wmpasf.dll#-#11.0.5721.5145 (WMP_11.061018-2006)#ok
77#Direct Show#ASF JPEG Handler#C:\WINDOWS\system32\wmpasf.dll#-#11.0.5721.5145 (WMP_11.061018-2006)#ok
78#Direct Show#ASF DJPEG Handler#C:\WINDOWS\system32\wmpasf.dll#-#11.0.5721.5145 (WMP_11.061018-2006)#ok
79#Direct Show#ASF embedded stuff Handler#C:\WINDOWS\system32\wmpasf.dll#-#11.0.5721.5145 (WMP_11.061018-2006)#ok
80#Direct Show#DivX Subtitle Decoder#C:\WINDOWS\system32\DivXMedia.ax#-#0.0.0.028#ok
81#Direct Show#9x8Resize#C:\Program Files\Movie Maker\wmm2filt.dll#-#2, 1, 4026, 0#ok
82#Direct Show#WIA Stream Snapshot Filter#C:\WINDOWS\system32\wiasf.ax#-##ok
83#Direct Show#Allocator Fix#C:\Program Files\Movie Maker\wmm2filt.dll#-#2, 1, 4026, 0#ok
84#Direct Show#WMT Virtual Source#C:\Program Files\Movie Maker\wmm2filt.dll#-#2, 1, 4026, 0#ok
85#Direct Show#WMT Interlacer#C:\Program Files\Movie Maker\wmm2filt.dll#-#2, 1, 4026, 0#ok
86#Direct Show#CyberLink Video/SP Decoder#C:\Program Files\HP\QuickPlay\Kernel\Movie\CLVSD.ax#-#6.0.2717 #ok
87#Direct Show#GPL MPEG-1/2 Decoder#C:\Program Files\Matroska Pack\GplMpgDec.ax#-#0, 1, 2, 0#ok
88#Direct Show#RealPlayer Audio Filter#C:\Program Files\Real\RealPlayer\rdsf3260.dll#-#6.0.12.1477#ok
89#Direct Show#Uncompressed Domain Shot Detection Filter#C:\Program Files\Movie Maker\wmm2filt.dll#-#2, 1, 4026, 0#ok
90#Direct Show#CyberLink Video Effect#C:\Program Files\HP\QuickPlay\Kernel\Movie\CLVidFx.ax#-#1.0.2024 #ok
91#Direct Show#XML Playlist#C:\WINDOWS\system32\wmpasf.dll#-#11.0.5721.5145 (WMP_11.061018-2006)#ok
92#Direct Show#WavPack Audio Splitter#C:\Program Files\Combined Community Codec Pack\Filters\WavPackDSSplitter.ax#-#1, 0, 3, 277#ok
93#Direct Show#RealMedia Splitter#C:\Program Files\Matroska Pack\RealMediaSplitter.ax#-#1, 0, 1, 0#ok
94#Direct Show#CyberLink DVD Navigator#C:\Program Files\HP\QuickPlay\Kernel\Movie\CLNavX.ax#-#6.00.2211#ok
95#Direct Show#WMT DV Extract#C:\Program Files\Movie Maker\wmm2filt.dll#-#2, 1, 4026, 0#ok
96#Direct Show#HP Rotate Filter#c:\Program Files\HP\Digital Imaging\bin\hpqdsftr.ax#-#060.000.087.000#ok
97#Direct Show#WMT Switch Filter#C:\Program Files\Movie Maker\wmm2filt.dll#-#2, 1, 4026, 0#ok
98#Direct Show#WMT Volume#C:\Program Files\Movie Maker\wmm2filt.dll#-#2, 1, 4026, 0#ok
99#Direct Show#Ogg Splitter#C:\WINDOWS\system32\OggDS.DLL#-#0, 9, 9, 5#ok
100#Direct Show#Haali Video Sink#C:\Program Files\Combined Community Codec Pack\Filters\splitter.ax#-#1.6.224.23#ok
101#Direct Show#HP Resize Filter#c:\Program Files\HP\Digital Imaging\bin\hpqdsftr.ax#-#060.000.087.000#ok
102#Direct Show#Stretch Video#C:\Program Files\Movie Maker\wmm2filt.dll#-#2, 1, 4026, 0#ok
103#Direct Show#CyberLink AudioCD Filter#C:\Program Files\HP\QuickPlay\Kernel\Movie\CLAudioCD.AX#-#5.00.3111 #ok
104#Direct Show#True Audio Splitter#C:\Program Files\Matroska Pack\TTADSSplitter.ax#-#1, 0, 0, 203#ok
105#Audio-Codec#Codec IMA ADPCM pour MSACM#C:\WINDOWS\system32\imaadp32.acm#msacm.imaadpcm#5.1.2600.2180 (xpsp_sp2_rtm.040803-2158)#ok
106#Audio-Codec#Codec Microsoft ADPCM pour MSACM#C:\WINDOWS\system32\msadp32.acm#msacm.msadpcm#5.1.2600.2180 (xpsp_sp2_rtm.040803-2158)#ok
107#Audio-Codec#CODEC A-Law et u-Law pour MSACM Microsoft CCITT G.711#C:\WINDOWS\system32\msg711.acm#msacm.msg711#5.1.2600.0 (xpclient.010817-1148)#ok
108#Audio-Codec#Codec audio Microsoft GSM 6.10 pour MSACM#C:\WINDOWS\system32\msgsm32.acm#msacm.msgsm610#5.1.2600.0 (xpclient.010817-1148)#ok
109#Audio-Codec#Codec audio TrueSpeech DSP Group pour MSACM V3.50#C:\WINDOWS\system32\tssoft32.acm#msacm.trspch#1.01#ok
110#Video-Codec#Cinepak® Codec#C:\WINDOWS\system32\iccvid.dll#vidc.cvid#1.10.0.11#ok
111#Video-Codec#Pilote Microsoft H.263 ICM#C:\WINDOWS\system32\msh263.drv#vidc.i420#5.1.2600.2180#ok
112#Video-Codec##C:\WINDOWS\system32\ir32_32.dll#vidc.iv31##ok
113#Video-Codec##C:\WINDOWS\system32\ir32_32.dll#vidc.iv32##ok
114#Video-Codec#Intel Indeo® Video 4.5#C:\WINDOWS\system32\ir41_32.ax#vidc.iv41#4.51.16.03#ok
115#Video-Codec#Intel Indeo® Video YUV Codec#C:\WINDOWS\system32\iyuv_32.dll#vidc.iyuv#5.1.2600.2180 (xpsp_sp2_rtm.040803-2158)#ok
116#Video-Codec#Compresseur Microsoft RLE#C:\WINDOWS\system32\msrle32.dll#vidc.mrle#5.1.2600.2180 (xpsp_sp2_rtm.040803-2158)#ok
117#Video-Codec#Compresseur Microsoft Vidéo 1#C:\WINDOWS\system32\msvidc32.dll#vidc.msvc#5.1.2600.0 (xpclient.010817-1148)#ok
118#Video-Codec#Microsoft UYVY Video Decompressor#C:\WINDOWS\system32\msyuv.dll#vidc.uyvy#5.3.2600.2180 (xpsp_sp2_rtm.040803-2158)#ok
119#Video-Codec#Microsoft UYVY Video Decompressor#C:\WINDOWS\system32\msyuv.dll#vidc.yuy2#5.3.2600.2180 (xpsp_sp2_rtm.040803-2158)#ok
120#Video-Codec#Toshiba Video Codec#C:\WINDOWS\system32\tsbyuv.dll#vidc.yvu9#5.1.2600.0 (XPClient.010817-1148)#ok
121#Video-Codec#Microsoft UYVY Video Decompressor#C:\WINDOWS\system32\msyuv.dll#vidc.yvyu#5.3.2600.2180 (xpsp_sp2_rtm.040803-2158)#ok
122#Audio-Codec#Codec Microsoft G.723.1 pour MSACM#C:\WINDOWS\system32\msg723.acm#msacm.msg723#4.4.3400#ok
123#Video-Codec#Pilote Microsoft H.263 ICM#C:\WINDOWS\system32\msh263.drv#vidc.m263#5.1.2600.2180#ok
124#Video-Codec#Pilote ICM Microsoft H.261#C:\WINDOWS\system32\msh261.drv#vidc.m261#5.1.2600.2180#ok
125#Audio-Codec#Windows Media Audio#C:\WINDOWS\system32\msaud32.acm#msacm.msaudio1#8.00.00.4487#ok
126#Audio-Codec#Audio codec for MS ACM#C:\WINDOWS\system32\sl_anet.acm#msacm.sl_anet#3.02#ok
127#Audio-Codec#Indeo® audio software#C:\WINDOWS\system32\iac25_32.ax#msacm.iac2#2.05.53#ok
128#Video-Codec#Intel Indeo® video 5.10#C:\WINDOWS\system32\ir50_32.dll#vidc.iv50#R.5.10.15.2.55#ok
129#Audio-Codec#MPEG Layer-3 Audio Codec for MSACM#C:\WINDOWS\system32\L3CODECA.ACM#msacm.l3acm#1, 9, 0, 0305#ok
130#Video-Codec##C:\WINDOWS\system32\LCODCCMP.DLL#vidc.lead##broken
131#Audio-Codec#Messenger Audio Codec#C:\WINDOWS\system32\sirenacm.dll#msacm.siren#8.1.0178.00#ok
132#Video-Codec#Windows Media Video 9 VCM#C:\PROGRA~1\COMBIN~1\Filters\wmv9vcm.dll#vidc.wmv3#9.0.1.0369#ok
133#Video-Codec#DivX#C:\WINDOWS\system32\DivX.dll#vidc.divx#6.5.0.53#ok
134#Video-Codec#Helix YV12 YUV Codec#C:\WINDOWS\system32\yv12vfw.dll#vidc.yv12#R1.02#ok
135#Video-Codec##C:\WINDOWS\system32\xvidvfw.dll#vidc.xvid##broken
136#Audio-Codec#Lame MP3 codec engine#C:\WINDOWS\system32\LameACM.acm#msacm.lameacm#0.9.0#ok
Je sais pas trop quoi virer en fait... ^^
Parce-que je crois que si je vire tout ça va être le carnage (surtout que c'est pas mon PC)