nero vision ...... help please

angie1

% B; q' T6 |+ Vtvb now,tvbnow,bttvb
& B2 C% P* X+ O: i$ Aos.tvboxnow.comi had already converted rmvb to mpg. i use nero 8 to burn  dvd. but why when
9 C$ n' N' _/ F1 ]i add file , it came out a message like this : unabe to insert C:.............
# n  \+ m  ?1 @6 J3 Pjust cannot add, why ?
4 E2 ]  k" r. H% ]can someone help please tvb now,tvbnow,bttvb- \! O3 C' f- U1 ?
thank you