nero vision ...... help please

angie1

- f6 G" l9 S( l3 V! W0 l: `0 ptvb now,tvbnow,bttvb
( n0 L& C' D: si had already converted rmvb to mpg. i use nero 8 to burn  dvd. but why when
* H. U7 L' @5 M6 _公仔箱論壇i add file , it came out a message like this : unabe to insert C:.............tvb now,tvbnow,bttvb: _/ ]1 K- N3 F0 C8 H3 _
just cannot add, why ?
! K& H% V! x  c9 H6 G公仔箱論壇can someone help please
% C' r4 k0 K9 v0 @; ^$ o2 {thank you