Question details:

I have some XVID-XOR files that I can play on VLC media player but I want to transfer them to my HDD player so I can watch them on my TV. The trouble is that when I transfer them to the player, they don't even show up when I hook it up to the TV. In other words, the player doesn't recognise them. Is there a way to convert these files to something useful please?

Answer:

You need some video codecs in order to be recognizied those files.

You can use All in one codec pack.