Monday 3 February 2014

Avid MC or Symphony: Exception:MSM:Unknown directory

Problem: After system has crashed, I can't import media to the bin getting an error: Exception:MSM:Unknown directory. Seems it's all about corrupted media.

Solution(s): What I found as possible solutions on Avid forums you can find below, but what actually helped me was much more simplier:
I've deleted media files (.mxf) in Avid MediaFiles directory which I suspect to be corrupted and it worked again!
In my case these were the last files I've imported and actually during this import system crash happened. So it should be the first thing to try. If you have no idea which files are corrupted, you have 2 possible solutions below:



from Avid knowledge Center :
Cleaning out Corrupt Media on Meridien Systems
On Mac:
1. If open, close Avid
2. Press Apple-F to open the find files dialog
3. Search all drives for files names starting with msm
4. Delete all msmFMID and msmMMOB
5. Launch Avid
6. During scanning, click *continue* (not ignore or ignore all) on any errors (hpDomain, Assertion failed, exception, etc)
7. Exit the application from the project selection window
8. Press Apple-F
9. Search for files starting with + (the plus sign)
10. Delete all files in the OMFI Mediafiles folders that start with a plus sign (+)
11. Search for file names starting with msm again
12. Delete all msmFMID and msmMMOB
13. Launch application again
14. If any errors come up during the scan, write down the omf file name (may have to click More to see the file name)
15. If there were errors, exit the app again then find and delete the files that you wrote down.
16. Delete msm's again and relaunch Avid
On PC:
1. If open, close Avid
2. Press Windows Key-F to open the find files dialog
3. Search all drives for msm*.*
4. Delete all msmFMID and msmMMOB
5. Launch Avid
6. During scanning, click *continue* (not ignore or ignore all) on any errors (hpDomain, Assertion failed, exception, etc)
7. Exit the application from the project selection window
8. Press Windows Key-F
9. Search all drives for +*.*
10. Delete all files in the OMFI Mediafiles folders that start with a plus sign (+)
11. Search for file names starting with msm again
12. Delete all msmFMID and msmMMOB
13. Launch application again
14. If any errors come up during the scan, write down the omf file name (may have to click More to see the file name)
15. If there were errors, exit the app again then find and delete the files that you wrote down.
16. Delete msm's again and relaunch Avid

If suggestions above don't help, one more option: 
Open the partition at the desktop level and rename the existing OMFI mediafiles folder, simply putting the letter X in front of the O for OMFI mediafiles will do and will effectively hide your existing OMFI mediafiles from Avid temporarily.  
Launch Avid and it will not look at the drive. 
Open any project and a bin it that project and navigate to the Audio tool from the Tools pulldown menu.  
Click on the PH button on the right side of the audio tool and scroll down til you see create tone media.  Make sure you are targeting your suspect drive and create a short audio clip.  LEAVE AVID OPEN but hide it so you can go back to the desktop.  
Open the partition and you will now see two OMFI mediafiles folders, a new one just created and the one you x'd out.  Open the X out OMFI media files folder and arrange the files either by size or by date and begin to move the media files into the new OMFI media files folder.  Once you've loaded a batch by date or by size click to activate Avid to refresh the MSM databases. 
Continue this process as you populate the newly created folder.  Its time consuming but if you organize you can weed out corrupted files.

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