nero vision ...... help please

angie1

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8 {- B- b+ R9 s1 A) g% Xi had already converted rmvb to mpg. i use nero 8 to burn  dvd. but why when' e. Z$ k1 }0 t3 I
i add file , it came out a message like this : unabe to insert C:.............( R0 X( C6 i: ~/ K3 Y  B4 ]
just cannot add, why ?5.39.217.77. v' L& O% w, b+ h( {7 u7 G
can someone help please
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