I have an old music server (about 1 TB) with FLAC files. The company (Olive) is now out of business. I would like to copy all the files which I can access over my LAN to my NAS . However, errors can cause the transfer (copy) to crash or interrupt. Next copy attempt ends up with additional copies.
Any suggestions for copying files to my NAS without making duplicates? Have tried searching for solutions (Google, etc) without finding good alternative. Inexpensive alternative acceptable, don’t need freeware although nice.
Thanks