Backup Recovery After Crash - Version 5.3 ‘Backup file contains unrecognized data' error comes when your data corrupts due to hardware or software issues. If this type of error comes on your PC screen then, simply use GUI integrated BKF Repair tool to recover the files and folders with keeping original metadata information. There is backup recovery features follows as: 1. Quickly backup recovery after crash through Quick Scan 2. Deeply backup recovery after crash through Deep Scan 3. Partially backup recovery after crash through Partial Scan For the first 15 days, you can use demo version of SysTools BKF Recovery software at free of cost. These demo versions allow you to preview the content of corrupted BKF file but can't save BKF file. If you want save vital BKF file, purchase Full Version BKF Recovery Software at $89 for Personal License or $180 for Business License only. http://www.corruptbackuprecovery.net/backup-recovery-after-crash.html