The solution to the problem is pretty easy, but the answer is NO to your specific question.

The IR blaster you showed if for connecting to something able to send IR signals and would shine onto something able to receive. Basically it's an optical output device that takes input from some line-level output. Not what you want.

Since that DivX player already has an IR-in port, you can forget about an optical output shining to the optical input on the player. You want an optical input cable. An IR receiver. Similar to the blaster, with a mini phono connector at one end, but a photosensor at the other (instead of an IR LED). Then you would connect this to the player's IR input port and the photosensor portion would be mounted in your cabin in line-of-site of wherever you can point your remote control.

Bruno