Exactly what I was thinking.

If it is only a backup, reformat the NAS drive and run a full backup.

el

On 2021-02-02 17:01 , Richard Kettlewell wrote:
> alister  writes:
>> Glad to see in the thread that you have located & recovered your files
>>
>> as a side topic another good recovery tool is photorec
>
> Better still, keep backups.
>
> (The thread is puzzlingly titled. If they are backup files then instead
> of trying to recover them, why not just make a new backup?)
>

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