Can't recover files greater then 500,000Kb.

Tried this tool and it seems very useful.

However it doesn't seem to like recovering files greater then 0.5Gb - usually VOB files from a DVD.

There is no output in the error file when run in debug mode.

When try to recover get following message in a box titled - operation complete

Recovered 0 files in 0.000115657157547366 sec.

Box appears almost instantly whereas for smaller files usually appears after a few seconds.

Have I missed something in instructions, i.e. maximum file size supported. If so would be good if got an error message to say this.