帮我看一下，为什么熊猫的mp4转换文件出错，谢谢！

T>允许使用Avisynth动态链接库
T>宫崎骏剧场集-龙猫.rmvb (选择转换模式/PSP/PS3用16∶9)
E>"C:\Documents and Settings\YES\桌面\PSP2000转换软件熊猫版\PSP2000转换软件熊猫版\cores\ffmpeg" -y -i "C:\DOCUME~1\YES\LOCALS~1\Temp\507FAC55-D40BE179-209887E3-E5D4364A.avs" -title "宫崎骏剧场集-龙猫" -timestamp "2008-03-21 19:44:52" -bitexact -vcodec h264 -coder 1 -vlevel 21 -bufsize 128 -g 250 -vol 150 -r 29.97 -aspect 480:272 -qscale 24 -maxrate 1000 -acodec aac -ac 2 -ar 24000 -ab 96 -f psp "C:\Documents and Settings\YES\桌面\宫崎骏剧场集-龙猫.MP4"
ffmpeg version CVS, build 4759, Copyright (c) 2000-2004 Fabrice Bellard
  configuration:  --enable-mp3lame --enable-faac --enable-faad --enable-amr_nb --enable-amr_wb --disable-ffplay --enable-small --enable-memalign-hack --enable-gpl --enable-xvid --enable-dts --enable-a52 --disable-vhook --enable-pthread --enable-x264
  built on Dec  1 2005 17:25:10, gcc: 3.4.4 (cygming special) (gdc 0.12, using dmd 0.125)
[avs @ 0x7e0ab4]failed to open avs : DirectShowSource: Could not open as video or audio.Video returned:  "DirectShowSource: couldn't open file C:\Documents and Settings\YES\桌面\宫崎骏剧场集-龙猫.rmvb:无法播放文件，不支持此格式。"Audio returned:  "DirectShowSource: couldn't open file C:\Documents and Settings\YES\桌面\宫崎骏剧场集-龙猫.rmvb:无法播放文件，不支持此格式。"(C:\DOCUME~1\YES\LOCALS~1\Temp\507FAC55-D40BE179-209887E3-E5D4364A.avs, line 1)
C:\DOCUME~1\YES\LOCALS~1\Temp\507FAC55-D40BE179-209887E3-E5D4364A.avs: Error while opening file
A>Dialog : 发生了一个错误 [Error:1]
T>Finished.
E>C:\Documents and Settings\YES\桌面\PSP2000转换软件熊猫版\PSP2000转换软件熊猫版\finishing\MessageBox.exe
我已经装了暴风影音，和avisynth2.5
是片子的问题吗