nero vision ...... help please

angie1

9 F4 c% s6 N' I. ?
5 F4 o4 }. d" Q' w, T% Ki had already converted rmvb to mpg. i use nero 8 to burn  dvd. but why whentvb now,tvbnow,bttvb6 X. r( F" n- a3 \9 k
i add file , it came out a message like this : unabe to insert C:.............公仔箱論壇7 x* f/ R9 h! G" H
just cannot add, why ?
4 H- u( b, y+ c5.39.217.77can someone help please
  ~& X4 n  g6 Y$ Y, A6 Z: i! l8 p1 utvb now,tvbnow,bttvbthank you