Sometimes it may be necessary to receate the tape index file from the tape contents. This process will overwrite any existing index file for the tape. There are two way to recreate an index from tape:
Select "Recreate Tape Index" from the "File" menu.
Right click on the tape drive tree node, and select "Recreate Tape Index".
The "Index" dialog will appear. This dialog shows KDat's progress as it creates the index file.