hackerivan

Good day, I need your help I have a recorder dvr brand Samsung SRD -1670 DC . Perform a backup 1TB external HDD but the format in which it was not recorded in AVI, it was held in DVR format. and when connecting my external drive to my laptop just 2 files appear in .bu and .db2 format. How I can convert those files to play on a computer? Only displayed on the recorder samsung, but I can not display them on a computer. Thank you very much for your support