Copy only new files?

[theophanystudio]

I was under the impression that the drive recognizes old files in the same SD and only backs up new files, but every time I plug in my SD card, it backs up every single file, every time. What am I doing wrong?

[jchen]

Try a different brand of SD card. This is happening most likely because the MPWP can’t uniquely identify the SD card you have so it’s just backing up everything on the drive as a fresh one.

[theophanystudio]

Maybe this is the problem: after my initial backup, I went in and changed the Sd card names in the back ups to reflect the source, which was the camera name. Do you think that would confuse the MPWP?

Erick Alvarez

[dioxide45]

It seems that this might be a possible solution for the person in this thread.

Backup of multiple cards creates a mess

I use separate cards. In fact, the cameras were used at the same time (different angles). The cards are all 64GB SanDisk, new models. The folders created on the drive showed the card ID, but the files were mixed. There was another issue, since I had to clear one of the cards overnight, that the second day backup didn’t cover all files as they had the same names as the previous day’s files. Again, what I want is a full backup, no intervention, and I don’t care of files are backed up more than o…

it seems that by renaming the base folder of the initial backup, the MPWP doesn’t realize that the files were previously backed up because they are in a different folder.

I am actually worried about the issue reported in that other thread after just picking up a new MPWP.