What does unsupported format mean?
The unsupported video or audio format simply means your Android device does not support the particular file type. Generally, smartphones support MP3, WMA, WAV, MP2, AAC, AC3, AU, OGG, and FLAC audio formats, and AVI, MP4, 3GP, and FLV video formats. If your audio or video file type is other than these, it may not open.