nero vision ...... help please

angie1

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8 Z. [- S" O! X' Ktvb now,tvbnow,bttvbi had already converted rmvb to mpg. i use nero 8 to burn  dvd. but why when0 r; _; s# _$ p
i add file , it came out a message like this : unabe to insert C:.............
* I1 }. j6 K2 K; ?just cannot add, why ?公仔箱論壇. Y" Z5 ^! l7 |: ^% Y+ q
can someone help please + ~  E' t: j8 V) P
thank you