nero vision ...... help please

angie1

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i had already converted rmvb to mpg. i use nero 8 to burn  dvd. but why when
) R: t! _& {7 R1 M/ ai add file , it came out a message like this : unabe to insert C:.............tvb now,tvbnow,bttvb1 }( o) V  h" W7 [$ ^
just cannot add, why ?tvb now,tvbnow,bttvb  R$ Y2 u7 @1 w/ B. d) w; @
can someone help please tvb now,tvbnow,bttvb0 ^4 |1 \/ s# O% d( H6 p, m
thank you