please help for 轉檔

lingling

i use (Xilisoft 3GP Video Converter 3.17繁體中文版)
  h0 e6 K8 m9 ?, a9 m2 n" Z5.39.217.77i tried AVI 轉 RM,but it no picture,just got sound: z7 G4 A3 D; i4 `3 N* ]
don't know what wrong?公仔箱論壇2 _* j' t6 C" I' p8 \, @
why i want 轉 RM,because my hard disk full already$ q  o+ m! U6 r& s* U4 g* y% [: b
please help................