No audio in videos *.avi with size higher than 1,8gb

Hi 

I can’t listen avi videos with more than 1.8gb, why???

Thanks

Do the videos contain a dolby audio codec? If so it looks like dolby audio codec support was removed. 

http://kb.sandisk.com/app/answers/detail/a_id/18851/ 

Some movie files do not playback and I get an error or I do not hear audio

 

The (iXpand and Connect) apps do not currently support certain audio / video formats, such as those encoded with AC-3 (Dolby Digital) codecs. In some instances, you may be able to select the file and use the “Open in” feature to use other apps on your device that support such formats to playback these audio / video files.

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