TOD is a binary video format developed by JVC for its tapeless cameras. Apart from JVC, TOD format is also used on standard camera brands such as Canon and Panasonic. It is used to store information into random-access media and uses MPEG-2 video codec compression. Also, TOD files can have an aspect ratio of 16:9 and 4:3.
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AC3 is an audio format designed by Dolby Digital to offer surround sound listening. This format is available on most Blu-ray and DVD media files and is played using a Dolby Digital DVD Player. Interestingly, AC3 can be output in up to six speakers of a home stereo system. On a computer, AC3 can be opened on VLC Media Player, Apple QuickTime Player, and Windows Media Player.
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