Here are the results of my testing with various transfers of 518 files/pictures (RAW+JPG pairs), for a total of 8,7 GB, with the same set of USB/SD card adapters reported above, on Ubuntu 20.04/Dell XPS 13 :
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With RPD 0.9.22: 69 corrupted RAW files.
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With RPD 0.9.24: 44 corrupted RAW files.
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With a file manager (Nautilus), based on 2 transfers:
- First test: 0 corrupted RAW files
- Second test: 19 corrupted RAW files.
See here, an example of a corrupted RAW file with the corresponding JPG and the original good (not corrupted) RAW file: pCloud
I don’t have time right now to test further, but these results may suggest the following:
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My hardware setup (bad combination of USB-C/SD card adapters) is probably the cause of the problem, not RPD. Maybe there is some kind of process interrupt going on during the transfer that is preventing all the bites to transfer…
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I don’t know what are the technical difference between how RPD and a file manager like Nautilus proceed to files copying/transfer, but at first sight, it seems that RPD is less likely to prevent these kind of errors than Nautilus.
Hope this helps!