I have a strange issue. Large library of loops (everything from original Acid loops to various libraries I've accumulated over the years). Some seem to have lost their "loop" status, hence they're not importing into SONAR correctly.
 
One library afflicted with this numbers in excess of 200 files. I could go in to Sound Forge and reset each individually from "one shot" or "beatmapped" back to "loop"....but my arm might fall off processing that many files.
Are there any batch processing utilities that anyone knows of that might be able to handle this.
 
Still don't know how it happened, but that's an investigation for another day :) 

yup, try this one here: ReNamer 6.6
http://www.majorgeeks.com/files/details/renamer.html

Thanks for the reply Chuck. 
Looking into that link right now; renaming, changing file extensions, etc seems to be its main purpose. I'm trying to change file attributes, not names or extensions. Have you used it for that purpose? Thanks!

my bad, I mis read your OP. I thought you wanted to rename all the file EXT's.
nope, have not used it for file attributes. im not even sure how this gets changed to be honest.

Thanks for looking into it Chuck.
For anyone running into this, if you have Sound Forge or any similar audio editor from that company, you can open a loop, click view metadata ( or properties in some programs) and look for acid properties (options are LOOP, One-Shot, or Beatmapped in some cases). 
In my case, I have to change these back to LOOP. Then re-save.
 
I have no idea how SOME of these files got changed ( I don't recall ever doing that or having reason to).
 
Not sure the above process is logical for 300+ files. The search continues :)

It's been years since I used it to do batch processing but I seem to remember Sound Forge had extensive batch processing abilities.  Though I also used Sonic Foundry's Batch Converter 5.0 to do things like that as well and I might be remembering features in SF that were really in Batch Converter (which they killed off).  Setting the Acid properties on WAV files is tricky and generally requires tools specifically designed to do it.  But I thought Sound Forge would do it to a group of files for you.
 
Edit: Finally got my SF 9 to start, it does have a batch processor but there doesn't appear to be anyway to do the Acid properties as part of the batch.  Maybe a newer SF added this, I stopped upgrading at 9 waiting for 64bit which never happened.

Newer versions of Sound Forge have scripting capabilities. You could probably do it that way, but you'll have to look into it because I haven't tried it myself.

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OK this kind of bugged me, having all these tools (some very old) but no easy solution to this.  But Google turned up an app that would do it, an app that the developer appears to have re-released for free even.

(SONAR Forum won't let me post the links so you will have to get them from Google)

Google "Xavierjefferson acidizer" for the software

But the installer is built with a very old Installshield that still uses a 16-bit windows starter, which now will not run on Win64.  Lots of these really old apps have this problem though so there are sometimes work arounds.  In this case the installer is already in pieces, just need some way to extract the files.  Universal Extractor can extract from a number of installer formats, including this older InstallShield compression.

Google "Universal Extractor legroom" for the extraction software

First unzip the Acidizer install to a directory.  Then using Universal Extractor open the _SETUP.1 file in the setup.  It will extract to two directories Group1 and Group2.  Group1 contains the application and the help file.  Group2 is just a bunch of old MS Windows files needed for installs (from the Win3.1/Win95 days).  I had no problems running the exe on my 64-bit Win 7 machine as is.  Not too keen about how it overwrites the file (I'd make a copy of anything I ran through it first) but it does appear to work.  May not work all that well, Sound Forge didn't think the loops were set to loop (but did have the Acid tag) but SONAR was happy with them.  May also have issues with long paths though it seemed OK with what I tested it on.
 

Nice solution Mathew. I used acidizer way back when in Sonar's early days and tried to reinstall it when I came across this thread but was disappointed to find it wouldn't work in 64 bit windows. I will give your innovative solution a try. From what I remember Acidizer was a great tool for batch editing of acid files/groove clips.

Ah..very interesting. I will try that and report back. Thanks Matt!