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Barebower Author

Level 1

4 points

error -1309

When I try to copy a video that’s about 6 gb from my 2019 i9 27 inch iMac to my USB-stick, almost at the end of copying it stops and shows: error-1309. Does anybody know how to fix this? It is a video in 4K

iMac 27″, macOS 11.6

Posted on May 15, 2022 2:46 AM

Top-ranking reply

Niel

Level 10

731,363 points

Posted on May 15, 2022 6:44 AM

Reformat the thumbdrive to Mac OS Extended, APFS, exFAT, or NTFS, or segment the video file so that no single part of it is 4GB or larger.

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error -1309

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