# SanDisk Extreme PRO 32gb reading full when it's empty

**URL:** <https://forums.sandisk.com/t/sandisk-extreme-pro-32gb-reading-full-when-its-empty/35408>\
**Category:** SD | microSD | CFast | CFexpress | CompactFlash\
**Created:** [February 7, 2016, 10:28am UTC](https://forums.sandisk.com/t/sandisk-extreme-pro-32gb-reading-full-when-its-empty/35408 "2016-02-07T10:28:18Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![paullou15](https://avatars.discourse-cdn.com/v4/letter/p/ecae2f/32.png) [@paullou15](https://forums.sandisk.com/u/paullou15)\
**Post date:** [February 7, 2016, 10:28am UTC](https://forums.sandisk.com/t/sandisk-extreme-pro-32gb-reading-full-when-its-empty/35408/1 "2016-02-07T10:28:18Z")

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So I think I did something to erase something important off my card, it’s empty on my computer (iMac) but reading full on my camera (canon eos 70d). Think I may need to re format. I’ll be doing this on my iMac just incase the process is slightly different. Thank you in advance.

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**Author:** ![tapeworm](https://avatars.discourse-cdn.com/v4/letter/t/ea5d25/32.png) [@tapeworm](https://forums.sandisk.com/u/tapeworm)\
**Post date:** [February 9, 2016, 4:49pm UTC](https://forums.sandisk.com/t/sandisk-extreme-pro-32gb-reading-full-when-its-empty/35408/2 "2016-02-09T16:49:11Z")

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Are you trying to erase the card? I think the reason it shows empty while connected to your Mac and full while in your camera is that unless you empty your Trash while connected to your Mac, the files aren’t actually erased; only the reference in Finder to them.

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**Author:** ![H-Gary](https://sea2.discourse-cdn.com/sandisk/user_avatar/forums.sandisk.com/h-gary/32/69281_2.png) [@H-Gary](https://forums.sandisk.com/u/H-Gary)\
**Post date:** [August 20, 2026, 1:55am UTC](https://forums.sandisk.com/t/sandisk-extreme-pro-32gb-reading-full-when-its-empty/35408/3 "2026-08-20T01:55:57Z")

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This happens because you didn’t empty the Trash after deleting the files on your Mac. When you delete files from an external device on an iMac, the system doesn’t immediately free up space. Instead, it moves them to a hidden folder named .Trashes on the card itself. The space is only truly reclaimed once you empty the Trash.

To fix this, connect the card to your iMac, open the Trash, and click “Empty” in the top-right corner. Then, safely eject the card and insert it back into your Canon camera to check if the space has been restored.

If you accidentally deleted important files from your SD card, you might want to check out this related blog post: [Recover Deleted Files from SD Cards on Mac with Free Ways](https://iboysoft.com/sd-card-recovery/recover-sd-card-mac.html)