WD TV Live HD Media Player vs ASUS HDP-R1 O!Play - TV HD Media Player

Product Features: WD TV Live HD Media Player

• Play Full HD 1080p video, music and photos on your HD TV
• Supports widest variety of file formats and devices
• Network capable for easy access to the newest content from PCs, network drives, internet favorites
• Play network and internet content

Product Features : ASUS HDP-R1 O!Play - TV HD Media Player

• Play the latest video and audio formats on the PC (including Real Media)
• Experience HD 1080p output
• Multiple input sources through eSATA, USB, LAN. Stream your content from an external HDD, PC, or NAS device.
• Highly compatible device that supports HDMI and composite inputs.
• Media Browsing - Simple yet powerful interface to allow you to sort and search for your media files. Also allow music shuffling as well as quick movie preview to enhance user experience.

Formats supported: WD TV Live HD Media Player

• Video: AVI (Xvid, AVC, MPEG1/2/4), MPG/MPEG, VOB, MKV (h.264, x.264, AVC, MPEG1/2/4, VC-1), TS/TP/M2T (MPEG1/2/4, AVC, VC-1), MP4/MOV (MPEG4, h.264), M2TS, WMV9
• Audio: MP3, WAV/PCM/LPCM, WMA, AAC, FLAC, MKA, AIF/AIFF, OGG, Dolby Digital, DTS
• Photo: JPEG, GIF, TIFF, BMP, PNG
• Playlist: PLS, M3U, WPL
• Subtitles: SRT, ASS, SSA, SUB, SMI

Formats supported: ASUS HDP-R1 O!Play - TV HD Media Player

• Video:
  Containers: avi, mpeg, mov, wmv, mkv, ts, m2ts, mp4
  flv, rm/rmvb.
  Video Codecs: MPEG1/2/4, H.264, VC-1, RM/RMVB
• Audio: MP3, WAV, AAC, OGG, WAV, FLAC, AIFF
• Image Format: JPEG, BMP, PNG, GIF, TIFF
• Subtitles: SRT, SAA, SMI, SUB

Alternatives:

• HTPC with XBMC or other software
• Seagate FreeAgent Theater+
• PopcornTV
• Apple TV (Only if you will watch videos and listen to music from iTunes, including rental videos)