Various video package formats, including 3gp, avi, asf, flv, matroska, mp4 and so on.

3GPP FileFormat TSS 26244-630.pdf
swf_file_format_spec_v10.pdf
quicktime file format.pdf
MPEG1.zip
Mp4 fileformat version2 ISO14496-14.pdf
matroska.pdf
flv.pdf
avi.pdf
ASF_Specification.pdf
rmff2.htm

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