Instruction: Given a question and the related document, and generate the answer to the question based on the information provided in the document.

Input:
Question: I guess ive been sleeping under a rock. but, what does this box do?
Document: Have had this little box for almost a week now and a day hasn't gone by that I haven't had to pull the power cord from the back of it at least twice as it has frozen/locked up/stopped responding. Hulu Plus has been nothing but an absolute miserable experience with this device. I have yet to be able to watch an episode of 30 Rock because either Hulu Plus or the WD TV itself locks up while retrieving episodes. Very, very annoying.
The remote. The remote is streets ahead (i love Community) of the previous small remotes. HOWEVER, its not the best. The feel of the buttons are good however when to get the best performance you must point the remote directly at the box. Also on the remote is a keypad. Ala the old cell phone clamshells/bars we all used to have. The thing is is that Ive had a touch screen phone for so long that i barely know how to enter words fast on this keypad.
if it says on the box that it can play a certain file type then it should play that file type, if not then on the box it should say "it can play all these file types after spending a week updating firmware and tweaking settings"I got fed up with this awful thing and took it back for a full refund, I then bought a Samsung smart tv with DNLA and guess what?????
I stream Netflix and all other apps on this box. I can plug in a usb hard drive and play movies. I can stream movies over my home network from a network hard drive. It plays all the different movie formats. I don't know what else this box is supposed to do. I guess it can cook me breakfast in the morning. Maybe in a future update.
With this newer WD box, audio is not a problem. Although with my BD ISO rips, I only get STEREO via HDMI, not 7.1 pass-thru. My receiver can fudge it make it sound pretty good with diff modes. But for purists, this may not be good enough. I haven't tried the optical out but my guess is it will be the same. Maybe that's my bad in ripping.
I guess my negative review has less to do with the product and more to do with my own stupidity. I rushed into buying this and did not stop to think that I do not have a Hulu Plus or Netflix account, making this not a very useful box. I wish that I had waited and bought one compatible with my Amazon Prime account so I could watch all of that content like I can on my Kindle Fire.As someone that downloads a ton of stuff, the USB function is awesome though.
I bought this to use with both my sling box at home and a remote one.It seems to work with the remote slingbox but it constantly freezes on the one on my internal lan. First the picture then everything, the box becomes inoperaive. It seems like it cant handle the higher speeds of my lan.. I have tried adjusting quality and letting it test bandwidth.. No help.. I guess I will be returning it if I can't solve. Am using the component output not an hdmi issue
This thing plays every file I throw at it. It streams from Linux and Windows shares with no issues. Rock solid video and sound. Only one slight ding that I personally don't care much about but the You-tube interface is sluggish and prone to lag/lockups but I really don't you-tube much anyway.
After an hour or so, all my movies were ready to go. I was able to change the sorting and filtering options to sort by most recent date, and to show a detail like view, a thumbnail like view, or a thumbnail with screenshots and synopsis in the background view. I was floored by this. As for streaming movies, it is flawless. You would not believe how rock solid the streaming is.
Don't buy it even for a nickel. The 280 page set up guide is your first indication of a company has not thought of the end user. You will have more use with a rock and chisel!
Answer: It plays media, but has no onboard storage.  So, it can play online streaming media (Hulu, Netflix, a bunch of other services), it can stream media from a network share so you can watch stuff stored on other computers on your network, and can also play media directly from a drive you plug into one of the USB ports.