The Consistency Check Threshold (CCT) setting controls the way DVD Data Rescue checks the data. It has no noticeable effect on the time required to recover data.
Normally, the Consistency Check Threshold must be set to LOW . Only if there are errors not registered by DVD Data Rescue™, this is, no error is shown in Details dialog but the recovered file has errors, then it must be set to MED or HIGH.
To change CCT setting, simply press one of the three configuration buttons.