Lost data problem

[Stephen]

I am running Ubuntu 12.04 with Gnome shell.

While I was out, the power failed and remained out longer than the UPS 
could cover for.

Just before leaving, I had performed a cut and paste of files totalling 
about 250 GB from one drive to another.

When I powered up, about 200 GB of files were gone from the source 
drive, but only about 50 GB were on the destination drive. The 
destination drive is formatted as NTFS.

Is this a very late data commit feature?

I am hoping someone can suggest how I can recover the data.

Thank you.

-- 
Stephen

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