The TX-40DSW504 has a greater number of video formats than most mid-size TVs that were released in the last 12 months. This Panasonic TV supports an AVI video format, which is the most frequently supported video format supported by TVs that have been around for the last year. The video formats "3GPP", "FLV", "M4V", "MKV", "MP4", "PS", "TS", "VOB", "VRO" and "WMV" are also supported by this TV.
MP4 stands for Moving Pictures Expert Group 4.
WMV stands for Windows Media Video.
AVI stands for Audio Video Interleave.