Movie files play fine on my TV from portable drive. Suddenly, new files are "unsupported."

SatterwhiteMedia

Commendable
Dec 15, 2016
4
0
1,520
I have 362 movies on a portable USB drive (WD Ultra, 3TB, exFAT). It's about 2TB of movie files with files sizes ranging from 1GB to 9GB. The movies are in all formats (mp4, mkv, etc.), and they all play perfectly fine through the USB ports on my Samsung TV. As I digitize my DVD/BluRay collection, I add the new files to the drive. No problems until recently. Suddenly, new files added to the drive will not play ("Unsupported format"). The same files will play from a flash drive and from a powered external HDD (also exFAT). Ran chkdsk on the WD drive: all good. Reformatted the WD drive, still using exFAT for the big movie files. Reloaded all of the movies onto the WD drive, plugged it into the TV, and all movies now play...even the ones that would not play before. Today, I added three more movie files to the WD and plugged it into the TV to check. On these newly added files, I got the same error message as before: "Unsupported format." I am only getting the error message on the three newest files. Again, the other recently added movies that, previously, would not play will now play after the re-format. Any new files that I add will not play. Any clues?
 
Solution
PROBLEM SOLVED (sort of)...
I have found a working solution. The reason I say "solved sort of" is because my solution works...I just don't know why it works. I reformatted the drive in question from exFAT to NTFS, and it now works perfectly. I don't think there was anything wrong with the drive or the files. I have run a couple of tests, adding new movie files to the drive and plugging it in to my TV, and I have not been able to duplicate the problem. I have no clue as to why my TV was fine with the exFAT drive and then it wasn't. Oh, well. It's a "win" either way...I'll take it.
Hi there SatterwhiteMedia,

Sorry that you are facing some issues with your WD drive. :(

I would say that the issue you are facing is a strange one. :D

I believe that it would be nice to back up the most important data stored on the drive, until you sort this out. After that, you can see if the drive will pass both short and extended DLG tests: http://products.wdc.com/support/kb.ashx?id=xYEcWY

Let me know how this goes,
D_Know_WD :)
 

SatterwhiteMedia

Commendable
Dec 15, 2016
4
0
1,520
I would say that the issue you are facing is a strange one. :D
>> Ain't it?

All of the files are saved to the powered external HDD as the primary archive. The WD Ultra is the "travel drive" for taking the movies with me. I will run the tests you suggested and let you know my results. Thanks, much!
 

SatterwhiteMedia

Commendable
Dec 15, 2016
4
0
1,520
PROBLEM SOLVED (sort of)...
I have found a working solution. The reason I say "solved sort of" is because my solution works...I just don't know why it works. I reformatted the drive in question from exFAT to NTFS, and it now works perfectly. I don't think there was anything wrong with the drive or the files. I have run a couple of tests, adding new movie files to the drive and plugging it in to my TV, and I have not been able to duplicate the problem. I have no clue as to why my TV was fine with the exFAT drive and then it wasn't. Oh, well. It's a "win" either way...I'll take it.
 
Solution