I have an lcd sansui 32 full HD and in this play any movie from usb, but in some movies voice not comming, these movies are dual audio

Sony 3 285 995 11 1 Operating Instructions Manual Page 63 Sorry. You cannot play movies on a USB thumb drive. You can only play still pictures in jpeg format not movies.

Nope, you certainly can't. The TV can only show still photos or play music. It's not capable of playing videos.

The manual is here:
http://www.samsung.com/ae/support/model/LA40D503F7RXZN
or
2011 LA40D503F7R 40 Inch Full HD LCD TV LA40D503F7RXZN Support SAMSUNG Gulf
See pages 16 and 17.

Burn your movies to DVD or Blu-Ray and you can plug a player into the TV, also described in the manual.

Try creating a Folder on the USB Drive and moving some movies to that.
Lit me Know how you go.
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Hi! I'm a little confused about what you are asking. Do you want to watch a movie from a USB flash drive or connect a USB device (DVD player, etc) to your tV? Please give a little more detail and I;d be happy to help.

.avi file format is quite common, although some of the newer multimedia type of tv's play more than one type like .mp4, .flv,.mkv and so on...

you have to mention your exact model but according to Sansui, LCD TVs can play DivX and Mpeg4 format files

there isnt much info for this tv, but some pretty common movie formats compatible with tvs would be avi, mp4, and mkv. Try one of those.
Hope this helped -Rp-

Some of movies encoded in Xivd (not divX, thought thye are compatible) are not supported my some manufacturers.

One of the following should help
- Re-encode the movies in DIVX format and play them
- Upgrade your TVs firmware to support the latest video formats

from usb these players will play only certain type of formats,,,
store movies in some other format and try... it will work.