nero vision ...... help please

angie1

9 v" N5 ^' f4 G- B5.39.217.77
( f5 ^- y; [9 q# T: F" k公仔箱論壇i had already converted rmvb to mpg. i use nero 8 to burn  dvd. but why when
3 c6 J! S5 z" }% u3 l  j7 Di add file , it came out a message like this : unabe to insert C:.............
) G. p: t. I4 f公仔箱論壇just cannot add, why ?* [8 U4 F' J: ^& y2 ^$ n( x/ h; f/ Q# k
can someone help please
+ `7 ^, Q% i4 j2 @6 `$ u公仔箱論壇thank you