What ho one and all,

I have a number of mp4 films on my desktop computer which I transfer to a USB thumbdrive to plug into our 'entertainment' computer which has a 36" TV as the monitor.

One such film, which plays on my desktop, give the message 'Cannot render file' on the entertainmnet machine. I have deleted and copied again, but still the same result with either MPC-HC or VLC. but still it plays on my desktop.

So I have tried with another thumbdrive and this has no problems. May e the thumbdrive, which is 516gb with only 100gb used.

More as a point of interest, what is likely to be the problem?

Thanks and toodle pip