The number of video formats supported by the TX-49DS500 is more than most mid-size TVs that have been available for a similar time to it. This Panasonic television supports an AVI video format, which is the most commonly supported video format supported by similar spec TVs that have been on the market for a comparable time to the TX-49DS500. The video formats "3GPP", "FLV", "M4V", "MKV", "MP4", "PS", "TS", "VOB" and "VRO" are also supported by this TV.
MP4 stands for Moving Pictures Expert Group 4.
AVI stands for Audio Video Interleave.