Finally, FINALLY, someone has figured out the solution to the Adobe ImageReady droplet problem that has rendered my desktop Mac useless for batch-resizing images for over two years now. Each time I attempt to use a droplet, I would get an error message that says, “Could not play back the batch. You do not have permission to write to this file.” But thanks to Ian_Altgilbers (whoever you are), my Mac is back in batchin’ action.
Update: Here’s an image I used to test if the solution worked.

That’s me with two of my sons and their newborn cousin who came into this world last Friday.
THANK YOU THANK YOU THANK YOU for posting this
I am having the same problem/error and NEED to find a solution fast (vs. recreating my droplets). The link above in your post does not work anymore – can you tell me what the solution is?
Thanks very much!
Hi Brent,
It looks like the page is indeed down (and the entire site!). I tried going to archive.org for a cache of the page but it wasn’t there.
I googled the phrase “could not play back the batch” and was lead to this Adobe page:
http://forums.adobe.com/message/1635851
I hope you find the solution there.
Daniel
I am having the same problem and found this post… but as Brent found out the linked site is now dead. I found it though on waybackmachine.org. Here it is for future reference.
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I’m running into the same problem..
And I just figured it out. Wow.. I think Adobe goofed on this one big time.
Anytime you run a droplet, ImageReady writes to a log file. It writes the date and time the files were processed, what droplet was used, and where the destination file was written.. The problem is that this file is owned by the first account to run a droplet. If you have several accounts, the second account will fail because it doesn’t have access to write to the log file.
This log file should be in the user’s preferences folder, not in the application bundle. I don’t know what they were thinking, but they moved it in CS2 (although to a location that is not any better).
To prevent this error message and allow other users to run droplets, you can either delete the log file and let it be recreated by the other user, or change the permissions on the log file so that anyone can write to it.
——-Path to CS file———-
Macintosh HD:Applications:Adobe Photoshop CS:Adobe ImageReady CS.app:Contents:MacOSClassic:ImageReady Batch Log.txt
——-Path to CS2 file———–
Macintosh HD:Applications:Adobe Photoshop CS2:Adobe ImageReady CS2.app:Contents:Resources:ImageReady Batch Log.txt
I’m submittiing this as a bug as well…