sony bravia having issues with recognizing video files

[WittyKitty]

My family has been watching a show that I put on a USB. All the files are in MP4 or MKV file formats. I have been loading them on in batches, and I loaded up to episode sixteen maybe last week (?). I loaded episodes seventeen and eighteen a few days ago, and then up to episode twenty-five . However, when I plug the USB directly into the TV (some sort of Sony Bravia, I can find the specifics if need be) only up to episode sixteen shows. I can access them on my computer, and it is not corrupted as far as I can tell. The files are all around 280 mbs, bar some that are about 600. The USB is not super low on storage either. Please help ?

[Marino.Manolo]

BRAVIA with Android TV?
In this case, try with another Player like VLC, from Play Store...
For some other BRAVIA (not Android TV), check the Audio/Video Codecs and Specifications for each Files, are there any differences with the previous Files (Episodi)?