This model is the newest 2.5" HDD media player/recorder with high definitionoutput and Ethernet file sharing. As small as a portable DVD disk case, itis 

  1) a portable moveable HDD   

  2) a digital video recorder (DVR) for HDTV    

  3) a DVD/DivX/MP4/MP3 multimedia player for HDTV and home theatre.

Recording function (Smart and powerful) 

connected with Set top box to record TV programs; Connected with VCD/DVDplayer to record contents in VCD/DVD disc    
One-touch video recording;Advanced Scheduler for multiple time recording. Smart!      
Up to 280 hrs(recording in SP mode) in a 750GB exchangeable HDD. Powerful!      
In DVDquality with selectable high, medium and low compression ratios (720 x 576@25fps, 720 x 480@30fps  MPEG 2 mpg format).  
timeshift      
simultaneously playing and recording function 
Playbackfunction 

Work as Audio / Video player when connected directly to Speaker system/TVmonitor      
Playback high definition movies. Support 720p/1080i   
Playback files in PC through wired Ethernet (10/100Mbps) 
Playback therecorded contents in HDD; Playback the files stored in HDD 
Directlyplayback the files on external devices like USB drive, HDD, Card reader(throughUSB2.0 Host Port)      
Support multiple file format: MPEG 1 /2/4, DivX,Xvid, VCD/SVCD/DVD, MP3/WMA, Dolby digital, AC3, JPEG, Kodak picture CD      
Fast forward/reverse, repeat playback      
View Pictures in variousways: Rotate, zoom, music slide show