nero vision ...... help please

angie1

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$ w& t9 `" r4 n/ |( j. D& p4 xi had already converted rmvb to mpg. i use nero 8 to burn  dvd. but why when: M* N! {! O  ?9 m
i add file , it came out a message like this : unabe to insert C:.............% y  ?) u' L! B( k, H+ d0 z
just cannot add, why ?
- H- h, Y+ k! h# V! o! b* g8 o公仔箱論壇can someone help please
" F: f4 P1 Y8 ~& T! M公仔箱論壇thank you