nero vision ...... help please

angie1

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: I5 Y& C7 l& q1 u. F6 xi had already converted rmvb to mpg. i use nero 8 to burn  dvd. but why when
  [+ Q! T# Z/ I- ^. W+ x- G1 mtvb now,tvbnow,bttvbi add file , it came out a message like this : unabe to insert C:.............os.tvboxnow.com8 s7 K' `+ b4 s. f5 S
just cannot add, why ?
4 V) O/ O+ ~5 S/ Gtvb now,tvbnow,bttvbcan someone help please
  Z4 T$ ?$ d* r8 v$ B- Ztvb now,tvbnow,bttvbthank you