The trace folder cannot reside on the drive holding the lost data.
When using the trace facility, you must not use a folder on the drive holding the lost data to store trace data. This measure is to prevent the trace data from overwriting the lost data being recovered.

There were unreadable sectors. The file was only partially recovered.
The file has not been recovered completely because some sectors could not be read. The recovered file is partially corrupt and may not be usable. See "Recovered files are corrupt" in this chapter.

This command is not available in demo mode.
When using this program in demo mode, you cannot save the session using the commands File, Session, and Save.

This command is not applicable to RAID or spanned volumes. Please set this option on the component drives.
You can use the commands Options, Search, and Sector Exclusion to instruct the program to skip bad sectors to avoid hanging on them. When reconstructing a RAID or spanned volume, you can exclude only bad sectors of component drives, not the RAID or spanned volume definition. To do so, select a component drive in the Look In box and then click Options, Search and Sector Exclusion. Then you can reselect the RAID definition.

If you select a RAID definition in Look In and try to use this command, you will get the error above.