What ho one and all,

Probably not the correct heading but as the issue seems to be affecting films / TV shows on a USB stick Home Entertainments seems correct.

I occasionally save TV series to my desktop computer, then copy to a USB drive so that we can watch on another computer which is our 'TV.' Both computers are running W7.

The series is saved usually as mp4 to the desktop HDD into a dedicated partition for TV shows, with the appropriate folder name. I usually them copy the folder to the USB or create a folder on the USB and again, Cntl A and copy everything to the USB folder. The I check that it is all working and we are good to go.

Recently, when inserting into the TV computer, the folder is empty. Return to my desktop and again, the folder is empty. I have run chkdsk and sometimes, rogue bits are found. Run through the process again, all good, but again, on the TV computer, the folder is empty as it is when again checking on my desktop.

I copied the files one by one, and checked. OK. But again, on the TV and desktop recheck, the folder is empty.

And this is happening with other USB sticks. It is not possible that three, various USB stick have all developed strange behaviour simultaneously.

As an aside, one stick shows in File Explorer but will not open/format or anything. Device Manager says it is OK. Dick management does not show it.

Ran a DOS command to format it, and although listed, the message that the command is not possible. The most frequent message is 'Please insert disk into drive.'

Grateful for any hints as to what could be happening?