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Known Participant
August 4, 2024
Question

Bridge creating large number of .dat files on external drive

  • August 4, 2024
  • 4 replies
  • 1098 views
I recently switched from an M1 iMac to a 2019 Intel based Macbook Pro (Running Sonoma 14.5).
Ever since the switch, when I open Bridge it creates a large number of cache_.dat files on the external drive where my photos are located. In the Settings there is a cache location instruction which is set to  HD / My username / Libraries / Caches / Adobe Bridge / Cache / v36, but there is no Adobe Bridge folder there (even when viewing hidden files). Instead it seems to be just putting the files on the external drive. There were several thousand files that I had to remove. 
These files don't gp away when I close the app and don't go away when I tell it to purge cache files.
i have uninstalled and reinstalled Bridge and it made no difference.
Any thoughts?
Thanks!
Phil

4 replies

Participant
May 25, 2025

Any update on this? Seems Adobe support has no answers. 

Legend
August 6, 2024

Bridge doesn't create these files AFAIK.

Known Participant
August 6, 2024
I am not a Bridge (or Photoshop or ACR) expert by any means. At first I
thought it was Photoshop. However, when I open Bridge these files appear.
When I open the program they appear. More appear if I click on a RAW file
thumbnail (it is not necessary to open the file). This happens even if
Photoshop is closed. Clicking on a .psd or .jpeg file does not seem to
trigger it.
If I work on a .psd or .jpeg file
This is a typical file name - Cache_00_0000000001.dat
It also sets up Index files with names like - Index_01.dat
I'd be happy to have a Zoom call with someone knowledgeable to illustrate
in real time how this happens.
Thanks again for all the efforts to help me sort this out.
Legend
August 6, 2024

You can contact Adobe over chat to have a tech look at your computer.

Erik Bloodaxe
Legend
August 4, 2024

"Automatically Export Cache to Folders When Possible" was an option in Bridge Preferences but on my Windows system, this has long since gone. This used to override your chosen cache location if this option was selected. Are you using an old version of Bridge? You didn't say what your version and release is.

Known Participant
August 5, 2024
Thanks for the reply -
I'm using Bridge 2024 - version 14.1.1.274
Erik Bloodaxe
Legend
August 5, 2024

Well, not an old version of Bridge.

You said that you removed a large number of the problem files - are they then recreated?

Since there is no cache folder in the default location, you might try setting a different cache location in Bridge Preferences to see if becomes populated when you select images, but you will have to restart Bridge for this change to be implemented.

kglad
Community Expert
Community Expert
August 4, 2024

in the future, to find the best place to post your message, use the list here, https://community.adobe.com/

p.s. i don't think the adobe website, and forums in particular, are easy to navigate, so don't spend a lot of time searching that forum list. do your best and we'll move the post (like this one has already been moved) if it helps you get responses.



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