The LE49U5000 has a greater number of video formats than most mid-size TVs that have been on the market for more than a year. This television supports an AVI video formats supported, which is the most frequently supported video formats supported supported by mid-size TVs that have been around for a comparable time to the LE49U5000. The video formats supporteds "H.265", "MKV" and "MP4" are also supported by this TV.
MP4 stands for Moving Pictures Expert Group 4.
AVI stands for Audio Video Interleave.