You can make a difference in the Apple Support Community!

When you sign up with your Apple Account, you can provide valuable feedback to other community members by upvoting helpful replies and User Tips.

Looks like no one’s replied in a while. To start the conversation again, simply ask a new question.

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

732,233 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.

(218309)

View in context

error -1309

Similar questions