The Panasonic TX-40AX630 has a greater number of video formats than most televisions of this spec and age. This TV supports an AVI video formats supported, which is the most commonly supported video formats supported supported by televisions of a similar type and age to the TX-40AX630. The video formats supporteds "3GPP", "AVCHD", "FLV", "MKV", "MP4", "TS" and "VOB" are also supported by this television.
MP4 stands for Moving Pictures Expert Group 4.
AVI stands for Audio Video Interleave.