nero vision ...... help please

angie1

( u& O  N+ Q4 g8 J. f8 q, Rtvb now,tvbnow,bttvb- c) P7 d) m/ V2 N  n, a
i had already converted rmvb to mpg. i use nero 8 to burn  dvd. but why when
4 V; q) D+ Y$ bi add file , it came out a message like this : unabe to insert C:.............tvb now,tvbnow,bttvb1 C: H9 a3 Z5 o$ J. O. p" _8 O3 ?
just cannot add, why ?2 y% ~1 Z' u6 g
can someone help please
/ \, }+ ?1 H; Jtvb now,tvbnow,bttvbthank you