Testing testing

The gov's spare xD card for her Fuji F30 refused to play when we were on holiday so faced with a £35 cost of a new card in NZ we had the pics on her other card burnt to a DVD and used it again.
Cock-up, at least 50 pics are missing on the DVD as well as a short video clip.
Retried the allegedly dodgy card in the camera and it seems OK. Shot 18 pics and downloaded them no trouble.
What to do - bin it I think......