AlansDronePics
First Officer
Flight distance : 814751 ft
Guernsey
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When you connect up for your flight, you should get a checklist screen which shows the system status. It does on my MP. At the bottom is the option to format the SD card. It takes barely a second to do. So make this part of your personal checklist routine. You know the one, gimbal guard off...
Some things to know.
The perfect way to format the SD card is to do that in the device (it might not always be a drone. Perhaps a camera, phone, gizmo???) All format oddities like FAT, FAT32, and others which can prevent reliable operation in the equipment will be eliminated. Yes, you can format on a PC, possibly a MAC, but I did that once and messed up the card. My mistake.
When you format, there are two options on a PC. Full format which takes quite a while and quick format which just cleans out the area where the address of the file resides. That is why you can recover deleted data, with the right software.
A proper formatting like a full format on a PC, triggers a lot of things behind the scene. The file addresses are deleted, the data itself should be wiped, though not over written so an expert can recover all or some of it. and the SD card is checked. The checking may surprise a few of you. With every write of data, the change in the value of the bits (0110010100110) may change and this will over time, damage the memory. The checking tests for stable memory and if faulty, it closes up that memory block and releases some spare area on the card. Some of you might have seen claims on YouTube that your 16gb card can be boosted to 64gb. What is done here is to corrupt the spare memory allocation so the spare becomes accessible. Don't fall for it. It won't work for long.
In a sense, formatting can be viewed as destructive, though sensible users will realise that in the real world, it isn't an issue. I still have 256K cards many years old that still work fine.
Deleting is not destructive in the same way, because when you delete on an SD (or hard drive), the file address is changed so the space is released. Again, with the right software and skill, the actual data can be recovered.
What do I do?
When I get home after a shoot, I put the SD card in a card reader on the PC and drag a copy of the file (DCM-100MEDIA) containing the images or video onto a fast external drive. This is store only, I do not work with the copy, there. I rename the 100MEDIA folder name to something useable like Dorset monument 09-04-2019 so I can find it easily later.
When it comes to editing, I copy the stored folder of just the items of interest to my hard drive. This is always the fastest device to use when working on (or playing) video.
I save the worked on copy with the File name suitably modified. DJI123 Front of Dorset monument I do this so I can quickly search for the original DJI123
Note. I always have a backup in the external hard drive of the original. Never work with it, take a copy to the hard drive and work on that. This way, you won't easily destroy a perfect photo.
I format the SD card in the drone and fly.
I hope this is of interest.
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