Torrent reclaime file recovery

I – A Folder in Qnap iSCSU Lun Starts to Give “The File or Directory is Corrupted and Unreadable ” And Cannot Access Data Anymore! II – Why This Problem Appears. I – What is NAS device? II – There Are Lots Of NAS Brands at Market, It’s Hard to Decide Which Device Is The Best. III – What Does Qnap Offers.