This review compares the Viewsonic VMP70 and WD TV HD Live, which I both have. First off, I only want to archive dvd movies with the vob file structure in them. The VMP70 will play vob files, with the menu and chapter system working, just like a real dvd. Archived movies that are unprotected (without CSS) will play very well. Protected movies (with CSS) will not play properly. WDTVHD Live, will play vob files (in one continuous stream) but will not play the menu and chaptering structure. If you pause or stop (WD), you can start where you left off. If you jump from one vob file to another, WD will ask if you want OK to continue or cancel to restart. WD support says the work around here is to create a playlist of the chapters, vob or avi files within a folder. I have not tried this, but it still defeats the purpose of the menu and chaptering structure.
There are software out there that can convert vob files to another file system, like avi, in a reduced file size and still play very well. Some software can break the avi file into chapters. I have tried it. Works well. You don't have to do that with the vmp70, because of the goto function. GoTo function / playback search: by title (if active in the movie), by chapter (if active in the movie), by time (very useful). VMP70 will play any file, may it be vob, avi, mov, mp4, etc one after the other in one sequence if you choose to play the file directly, within the directory structure. The trick here is to create a folder for each movie that has divided vob or avi or mov, etc files in it, so they don't mix. WD will play one file at a time then stop within a folder. There might be an option for WD to play continuously, I have not explored that yet.
VMP70 reads the directory tree, folders and subfolders. If there are several subfolders within a tree, you have to go "back button" several times to go back to the root directory of the connected drive. Or hit "Home" to start all over. WD works similarly. The WD has a text search function which makes it faster to go to a particular file or movie title.
VMP70 remote control works farther and is more responsive, and may not be directly aimed at the player. Has more direct functions, volume control. WD remote: very weak, has to be near and aimed directly. Fewer functions. VMP70 can go 32x FF or Rev. Has slow mo. WD can only go 16x FF/Rev. No slow mo. Both has zoom
in/out and pan function. Advice for WD media player owners: Make sure battery polarity is installed correctly on the remote control. Reverse battery installation will smoke it. Happened to a friend who accidentally installed batteries the wrong way. Apparently, the WD remote does not have reverse polarity diode protection if batteries are installed the wrong way.
WD Live has network and wireless (with usb wifi dongle) capabiltiy. On VMP70, none. But I will try to connect a usb to RJ45 network dongle or usb wifi dongle to see if it will work. On VMP70, I hooked up an unpowered usb 4 port hub. On the hub, connected two 8GB usb stick, and one unpowered 500GB external usb drive. They all were read by the player. Media files on them were read and played accordingly without error and degradation. On that usb port, 3 drives were read with the drive names displayed on screen. WD will not read all usb devices connected to a usb hub. In my case, WD only read one device (I guess the strongest of the three).
I like both players. WD having network capability and some internet access to some sites like Pandora, maybe youtube if it still works. You can transfer files between folders on usb port and network on WD; search function. VMP70 for playing menu and chapter system, goto function, ability to read usb devices connected to a hub, more remote control function. Both players have their own strengths and weaknesses. You decide what you want. Both are keepers for me, one upstairs, one downstairs.