As wireless technology becomes more advanced, the demand for more 
sophisticated options to stream media from your mobile device to your 
HDTV steadily increases. It's hard to keep track of the various 
solutions companies are using to deliver this feature to their 
customers. 
DLNA, the most popular standard, is compatible with an army of dozens -- if not hundreds -- of products, while giants like 
Apple and 
Samsung have chosen different routes. After an arguably unsuccessful attempt at offering the DLNA standard via the original 
Media Link,
 HTC has decided to fly solo with the Media Link HD in the hopes that 
the accessory will add value to the company's high-end One handsets.
 We have little doubt that HTC is trying to keep the Media Link HD small
 and simple: it's a credit-card-sized dongle that easily fits in the 
palm of your hand, and only takes a smooth, three-finger gesture to pair
 it up with your 
One X or 
One S.
 Once connected, it gives you the opportunity to stream movies to your 
television and perform other tasks on your phone at the same time. A 
solid concept, to be sure, but is it worth shelling out at least $90 for
 this little darling? Tune in below to find out.
 
   
 Hardware
The Media Link HD is a tiny black box that isn't going to win any design awards or 
beauty contests
 (sorry, we mean "scholarship pageants"). We don't mean to say it's an 
eyesore -- far from it, in fact -- it's just not a product that the 
folks in Taiwan felt the need to put extra thought into, at least in the
 looks department. Measuring 84 x 52 x 12.2mm (3.31 x 2.05 x 0.48 
inches), it's smaller than a credit card and a bit thicker than the One 
X. It also has a similar body and style as its predecessor, the 
DLNA-streaming Media Link. 
 As for cosmetic differences, HTC 
opted for glossy, black on the top, while the bottom is constructed from
 a grainy, dark grey plastic. The back even has a cute little dimple 
smack-dab in the middle; if there's a reason for it to be there (aside 
from hopes that a chorus of 
awws will magically ensue) we're not 
sure what it is. Perhaps it makes the thing easier to grip when your 
thumb is there. Regardless, much like the rest of the Media Link HD's 
design, this isn't going to be a factor in your decision to purchase it.
 The new device keeps things simple on the outside, offering a single 
reset button on one end and a full HDMI port and Micro-USB charging port
 on the other.
 Features
The concept of pushing media from your mobile device to your home 
entertainment network or a board room projection screen is certainly 
nothing new. In fact, it's blossomed into an incredibly crowded market 
heavily saturated by thousands of DLNA-certified devices (one of which 
being the original Media Link) and services like Apple's AirPlay. 
Samsung also announced a similar product in association with the 
Galaxy S III
 last month which takes advantage of WiFi Direct. Plenty of companies 
have even tried to put a unique spin on the idea -- Motorola's Webtop 
dock comes to mind -- but that didn't stop HTC from introducing the 
Media Link HD, an accessory embedded with proprietary technology that 
can, at present, only be supported by the prized 
One X, 
One S and 
EVO 4G LTE (sorry, 
One V owners).
 
  We're concerned that the proprietary technology may not be a convincing draw for developers.
First and foremost, the new Media Link offers HDMI mirroring, which 
means everything you see on your mobile device can be displayed on your 
HDTV, computer monitor or other HD-compatible screen. But there's a 
twist: when you're watching a movie stored directly on your One X or One
 S (read: not on a third-party app, at least not yet), it won't actually
 play on the phone simultaneously. Why? For the dual-screen effect. 
After all, it's not like you're going to be watching the latest Ryan 
Gosling flick on your TV 
and your phone at the same time, so why not use the smaller screen to check emails, post on Facebook or anything else? 
 As it currently stands, all third-party apps are simply mirrored to the
 TV, which means you see the same thing on both displays, with one image
 just being much larger than the other. That should change soon enough, 
however, because HTC has already pledged to soon release an API for the 
Media Link HD. Once released, it will allow developers to take advantage
 of the dual-screen functionality in much the same way as we just 
described when watching natively stored videos. Think of the 
possibilities: you could watch streaming Netflix movies on the big 
screen while performing other tasks on the phone, or show off your 
presentation on the TV while glancing at your notes at the same time. 
The API will also allow devs to control the streaming on / off switch --
 for instance, apps could completely replace the three-finger swipe 
gesture with a button that says "Stream to TV." 
 These are great
 features, but we're concerned that the proprietary nature of the Media 
Link HD may not be a convincing draw for developers. We expect HTC will 
release a handful of devices that are compatible, but ultimately, the 
success of the accessory largely depends on how well the One series 
sells in the next few months. If few customers are buying these phones, 
even fewer will shell out the dollars for something that can't be used 
in concert with other devices. And if nobody's buying it, no developer 
will want to waste their time coding for it.
 Setup
HTC wanted to make the Media Link HD as portable (and simple to use) as
 possible, so it's kept the setup process limited to just a few steps 
that, in all, shouldn't take you more than a few minutes. After all, 
tethering the device to a computer or adding other complications just to
 get the thing to work would turn into a disastrous and incredibly 
frustrating experience for most. 
 Your phone can connect 
wirelessly to the Media Link HD in two ways: they can latch onto the 
same WiFi hotspot, or you can establish your own peer-to-peer network if
 there's too much WiFi interference or there simply isn't an access 
point available. The setup process remains essentially the same for both
 methods of connection, though you'll need to tell your phone to 
disconnect from and forget your current WiFi connection if you choose 
the P2P method.
When you turn the Media Link on, you'll be greeted with a message on 
your TV to slide three fingers up on your phone. Doing so for the first 
time will prompt the two devices to connect, and after roughly 30 
seconds or so, you're ready to go. In a quick moment, your phone will 
automatically convert to landscape mode and your TV will be showing the 
same screen. 
 Now that you've configured one phone to the 
dongle, how does it work if you have a house full of Ones? No sweat -- 
just slide three fingers down to disconnect yours, allowing your 
EVO-toting roommate to hook theirs up. No extra setup is necessary: the 
only time you'd need to reconfigure is if you choose to switch from WiFi
 to P2P within the same area. Doing so causes the dongle to forget the 
earlier connection. Since it's quick and easy enough to pair up your 
devices again, this isn't really that serious an issue.
 
 
In case things don't work out so smoothly, there's another method you 
can attempt before throwing the Media Link at the wall in frustration. 
Within the Wireless & Networks section of the settings menu, you'll 
see an option for the Media Link HD. This is where you'll find a list of
 available devices; click on the one you're currently trying to connect 
to and a setup screen will pop up. Three choices are available: Connect,
 Start Device Setup and Advanced Settings. The Connect option 
essentially performs the same function as your usual three-finger 
gesture. Start Device Setup prompts you to press the single button on 
the Media Link to restart the pairing process. The Advanced Settings 
option allows you to check for firmware updates, change language 
settings and change the P2P name and password. We found that Start 
Device Setup came in handy when we were attempting to switch from one 
WiFi network to another, but ideally you'll rarely -- if ever -- need to
 give this a shot. You can also perform a hard reset by holding down the
 Media Link button for 10 seconds or so until a steady red light starts 
to glow.
 Performance
 
  Your mileage may vary when it comes to latency.
Now that we've teased you by discussing hardware and setup first, let's
 tackle the important question: how well does it actually work? We had 
the opportunity to test a bug-riddled pre-production unit last month, 
and received a final production-grade model more recently. It's still 
not perfect by any stretch, but the improvement we saw in the latest 
hardware and firmware was significant. We won't go into many details on 
how the pre-production unit performed, since it's not the final product 
and doesn't reflect the changes made during that time -- let's just say 
that we could have chucked it out the window on several occasions. 
Instead, we'll discuss the version that consumers would receive if they 
were to buy one today.
 As mentioned earlier, the configuration 
process took 20 to 30 seconds to complete. Once we were hooked into the 
unit, the mirroring was smooth. We were able to flip through menus, 
screens and apps with ease. We observed some slight lag from time to 
time, but the few delays we encountered typically lasted just a second 
or two. All told, it had little effect on our overall enjoyment of the 
product. 
 But mirroring is only one small part of the equation, 
Rather, the company's main selling point is in the split-screen 
functionality -- your ability to watch movies and home videos on the TV 
while simultaneously checking emails on your phone, for instance. We 
picked out a full-length motion picture in the Sense gallery and in no 
less than 10 seconds, the content had been pushed to the TV and all 
buffering was complete. Very seldom, if ever, did the movie have to 
pause for additional buffering. Latency was never an issue on the final 
product. Likewise, viewing photos was a snap, with each image only 
taking a second or so to be pushed over to the bigger screen.
 As a
 disclaimer, your mileage may vary when it comes to latency: slow 
internet speeds won't adversely affect your experience, but since the 
Media Link relies on your router as a proxy, having a clean WiFi 
environment may be a make-or-break scenario. If you live in an area with
 a heavy concentration of wireless access points, interference can 
potentially slow down your dongle's performance (if you're using it in 
middle of the city, you'll probably be better off using the Media Link's
 P2P option). The same thing can happen if you have multiple devices 
using the same network -- each one stealing a chunk of your precious 
bandwidth -- or if your WiFi signal is weak.
 
 
Plenty of multimedia formats are supported on the Media Link. For 
video, these include H.264, MPEG-4, .MOV, .3GP, .MKV, XVID and .AVI; for
 audio, MP3, WMA, AAC, HE-AAC v1 / v2, AAC-LC, WAV, AC3, Dolby Digital 
EX and DTS pass-through. If you want to play slideshows or simply look 
at individual pictures through the Media Link, JPEGs are the only files 
supported at the moment (a step down from the original, sadly). However,
 a firmware update coming in the near future will add OGG and FLAC to 
the list of compatible formats.
 We did notice a few quirks worth 
discussing. Even though all of our home videos and most of our movies 
ran smoothly, and even though we didn't experience any loss in audio or 
video quality (on a 1080p HDTV at least), we encountered a few issues 
with movies that we'd ripped from a DVD and converted into MP4 format. 
While they looked and sounded perfect on a PC, they didn't translate as 
well to the Media Link. There were a few instances in which video came 
through just fine, but the audio track was four-tenths of a second 
behind. Other times, the audio track was interrupted by an audible 
thump
 every second or so. After trying several different file types and 
sourcing methods (i.e., DVD ripping software, downloading, digital 
copies and video recorded directly on the One X), the only ones we had 
problems with were movies ripped from DVDs. 
 After discussing 
the matter with HTC engineers, the company concluded there are some 
lingering issues with how the software encodes these movies, and the 
Media Link hardware has a difficult time properly decoding the audio. 
They're looking into the matter and hopefully we'll see this scenario 
resolved in a future update, but we bring this up in the meantime 
because many consumers may experience similar problems depending on 
where their files were sourced. If it's happening to you, we recommend 
trying out different videos that originated using various methods to see
 if you can find a correlation with the issues you're experiencing. 
 Gaming is also a hit-and-miss experience: it all depends on which 
titles you're trying to play. As much as we'd like our smartphones to 
become the next-gen gaming consoles, we haven't arrived at that point 
just yet. The Media Link's mirroring functionality isn't going to give 
you reason to toss that Xbox or PlayStation in the garbage. Casual games
 -- you know, anything in the 
Angry Birds / Temple Run echelon -- will appear fine on the bigger screen, but graphics-intensive titles aren't going to fare as well.
 
  The biggest limitation is the amount of storage you have on your phone.
Aside from gaming the biggest limitation here is the amount of storage 
you have on your phone -- not to mention the time and effort it takes to
 sideload movies onto your device. This may be a deal-breaker for DLNA 
fans. As we mentioned earlier, Netflix and other similar apps can still 
be mirrored onto your television, but no split-screen capability is 
available for them yet. Hopefully developers will find a way to get 
around this little niggle once the API is released; we'd love to see 
compatible apps remotely access and stream movies from our PCs.
 Wrap-up
The Media Link HD is a tremendous improvement over its predecessor, and
 in most scenarios it works as advertised. The ability to push video 
content to your HDTV and perform routine tasks on your phone at the same
 time is a glorious feature. It's a glimpse at the direction wireless 
media streaming is going -- think seamless mobile gaming on your TV with
 the phone as the controller. Still, HTC needs to attract more developer
 interest to make the venture worthwhile. This is one of our biggest 
qualms about the company's proprietary technology: the success of this 
tiny dongle is highly reliant upon how well the One X and One S are 
received. (Remember the 
Kyocera Echo, which offered an API for its dual-screen functionality? Yeah, we barely do either.)
 The inability to use the Media Link as a vehicle to connect your PC to 
your TV may disappoint anyone with a huge library of flicks to choose 
from -- especially anyone that already has DLNA functionality. The $90 
price point won't attract impulse buyers casually wandering through the 
store either. With all that in mind, it does exactly what we've seen it 
do in the professionally-made videos and trade show demonstrations -- 
and with some minor exceptions, it's seamless. It isn't the perfect 
solution for everyone, but One owners are left with few other media 
streaming options to choose from. With HTC's homegrown selection, at 
least, you likely won't find yourself desperately searching for 
alternatives.