X2 starts acting up when I navigate to the drive with my samples on it through the browser.  The buffer icon (spinning circle) comes up and usually after a few seconds "not responding" will show up at the top of the screen. What I decided to do one day while heading out was not touch it at all after seeing the not responding come up because usually after about 5 minutes of it not responding I will go ahead and shut the program down. A few hours later I returned home and I was able to navigate through my sample drive without problem or hesitation until I closed down the project then opened it again. Just to be clear I didn't close X2, just the song I opened to get to the browser.
 
This morning I decided to see exactly how long it took to load up my sample drive in the browser and it took about 30 minutes.  When I closed the project and reopened it it stalled out again and "not responding" appeared on the top of the screen.  

CakeAlexS
Show us the file path of where it plays up. What happens if you move say 80% of the samples in another folder? I'm thinking that a weird file path, unusual characters in a file/folder name other than say A-Z or 0-9, or the file path is too long, or a corrupted file hence my chkdsk suggestion. Or maybe too many files in one folder.
 
Sorry the screenshot is impossible to see.

I tried uploading a pic earlier and you saw the results of that.. haha.. If you can explain to me the proper way to upload the pic for better viewing then I will.. 
 
I have already taken my main sample folders that I use and copied them to my main hard drive 
 
I have a total of 330gb of sounds including Komplete sounds and IK Multimedia's too. I am hoping that its not the case.. 
 
Funny thing though is that my sample drive is displayed as 'Samples/Refills" because I used to have Reason.. I will take the '/ Refills' out of it and see what happens.. Geez I would feel like a complete idiot if that were the problem.. haha...

chawilcomm
 
Its strange that the other programs that I no longer use like Cubase's Mediabay or FL Studio's Browser or my other current DAW Studio One 2 didn't pick that up..
 

Those are all cross-plaform apps. It is possible they do not rely on Microsoft file name handling routines.

I can recall that I had this problem a long long time ago when I named a sample with an accent.  Sorry to remember this a little later...

It was a forward slash "/" on the name of the drive and that has been there since I put this computer together 4 years ago. 
 
What else was weird was that I had to remove a couple of .rar files. Apparently that was stopping the process to. But why would the .rar file stop the process and the Komplete files and IK Multimeida files on my drive?
 
Maybe because Sonar is equipped to read those types of files and not .rar files

So it was the drive volume label and not a folder?
In regards to RAR, in theory if Sonar does not recognise the file it should ignore it and move on, the process should not stop.
Interesting will test that on X3E when I get a chance... 
Glad it's fixed...!  Cheers :)

All I know is that when I opened X2, clicked on the media tab in the browser and pointed it toward my sample hard drive it would show 3 folders that I have labeled for easy import/export and .rar file containing alot of midi files and it would stall out.. it didn't take 30 minutes like before but it took like 10 or 15. when I removed that .rar file from my sample hard drive I was able to jump in and out of it with ease.
 
Could have been the fact that it was a compressed file and the size of it that Sonar was trying to read to see if it was compatible, I am not sure... As you, I have pointed it to all my other drives and have dozens of different type of files too with no problem..
 
I'm just glad that it is working because coming on the forum was the last straw. My mind was made up to just uninstall it, take a loss and search for another DAW to replace it down the road. I am extremely glad that I don't have to because this DAW is flooded with features that I am finding extremely useful.
 
... 

Well I added to the name of my D Drive volume label a forward and back slash, and then tried to browse media with X3E and it worked... Maybe it's fixed...?
 
Cheers...