Hi , I have an 8 GB USB stick and formatted it to NTFS.
I copied a mkv file on it that plays fine via a USB external connected harddisk.
When I connect it to the WD HD TV (gen 1) player it detects the USB stick but via file view I cannot open it but I can open it via folder view.
When I then try to play the movie it returns with a message that there is no decoder found to play the file.
By the way, via a 4GB fat32 memory stick it plays without a problem.