Memory Card Error

[gt47]

MEMORY CARD ANOMALY...While in movie mode I shot 10 seconds of a flower opening with my Canon SD100. When I previewed the movie ....memory card error.Tried to download other images on card (san disk 256) and received the same eroor message. Canon states "error card anomaly". Is there any way to download the other images on this card or have I lost everything?

Thanks,
George