[PJBankard]

The USB is likely formatted to a file system version that windows doesn’t read. Try formatting the USB to FAT32 and copying over the data again.

[PJBankard]

Be advised the FAT32 doesn’t support files bigger than 4GB. If your video file is larger than that it won’t transfer.

[dayglored]

> The USB is likely formatted to a file system version that windows doesn’t read. Try formatting the USB to FAT32 and copying over the data again.

Maybe, if the Dish DVR did the formatting itself, but I think that is unlikely... but I don't know.

I suspect it's not actually the format of the flash drive (filesystem), but the format of the video files themselves, that is the problem.