I recently purchased a Panasonic Viera TV (TX-L37V20B). I am disappointed with the restriction imposed on the use of an external USB HDD by the Media Player facility. The Viera Media Player supports playing of a wide range of audio, image and video files, including DivX HD (but not, apparently DivX Plus HD / MKV). Such files can be read from an SD Card or USB Flash Memory, but not from a USB HDD. The Media Player does allow access to video recordings on a USB HDD, but only from a HDD which has been ‘registered' for use with the same TV, ie. only video files created by the specific TV may be played by Media Player. Panasonic has, for whatever marketing reason, prevented interchange of USB HDDs between other Viera TVs and also PCs. (See also http://www.avforums.com/forums/lcd-led-lcd-tvs/1303759-panasonic-viera-tv-usb-hdd-pvr-supported-drives-pc-access-recordings.html ) There would seem to be no technical reason why audio, image and video files could not be played by the Viera Media Player from a USB HDD, provided an appropriate file system, eg. NTFS, was supported. So, why has Panasonic not included this extremely useful functionality? After all, Panasonic does not market a standalone USB Media Player, eg. like the Western Digital TV Media Player range, or the Sony SMP-U10 USB Media Player. It is regretable that Panasonic has imposed this restriction. As a consequence I shall be forced to use a separate USB Media Player with this TV.