I have the Asus Oplay bought due to the low price, even though I already the WD TV HD, Popcorn Hour A100 and TViX own 5100.
The Poppi has with some 1080p MKV's problems (bucking), albeit very rarely, and I got him into the network can not correct.
Although I saw the releases of the PC, the playback stopped but after 1-2 seconds - however, I am what networks As well as not a professional.
The WD-player does not have a LAN and the remote control is, let's say "borderline"
Time one must repeatedly and press very firmly on the keys, sometimes multiple commands per pressure equal counted, also the FB must be always directed directly to the box.
Qualitatively (image + sound) is the Western Digital otherwise very good.
TViX 5100 is great despite the older chips, but again I could never access the movies on the network.
As I have the Asus Oplay connected, I had only just select DHCP (depends on Fritz box 7240) and immediately I was able to access the computer's folder and play even 1080p movies perfectly - easier than ever!
Why this did not work with other devices as well, is beyond me.
The Oplay the menus are logical, image and sound quality excellent and the power consumption minimal.
Now I have no "target shooting" make more if I use the remote control and it just runs every format that is the Asus purposed.
If you connect the box directly to the TV will be pleased with the DTS downmix, so you can hear something no extra AV Recdeiver!
In short, the HDP-R1 I can recommend without hesitation!
Addendum: You should mention that has become possible at last the Prior or go back through eg 10 minutes (adjustable), because the firmware is really neat.
The fast forward / rewind is not available to use namely MKV HD material hardly.
Likewise BluRay ISOs can now be played, We'll see what else is added in the future meaningful extensions.
24/06/2010: Recently, a new firmware is available, which now enables Internet radio and TV.
The TV channels are of no interest to me, since I only watch videos or music listening - but the countless radio stations are great, for every taste is catered for, so the new software is a real added value.
Oh ... of course you can also save as favorites.
07/05/2011: For several weeks, the firmware is 1.35 available, this can be finally the MKV's play correctly with images and sound, which are equipped with the so-called header compression, without only the films need to re Muxxen. (Info: The function Header Compression is used only recently, so there was no lack of Oplay)
Possess the header of the picture or sound HeadCompr. the appropriate stream (image / sound) does not play if you do not update the firmware.
Also speaks for Asus' customer friendliness, which they made the FW pretty fast online!
For some time you can play DVD and BluRay Isos
I am still very happy with the O play, although the remote control but somewhat weak signals sent - with my Harmony 885, it works much better.