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Video Object (VOB) is a container file format for DVD movie files. Commercial DVD files that contain copyrighted content almost always have copy protection, such as Content Scramble System (CSS) encryption licensed and maintained by the DVD Copy Control Association (DVD CCA).
By default, VOB files open in Cyberlink PowerDVD, which is a player frequently installed on consumer electronics, such as laptops, desktops, and DVD drives. Since DVD files are usually encrypted, players must have CSS decryption software to enable playback.
An unencrypted VOB file will usually open on any player that allows playback of generic MPEG-2 files. VLC media player can also play unencrypted VOB files, and it works across many platforms, including mobile.
Developed by: DVD Forum
Initial release: 1997
MPEG-4 (MP4) is a container video format that can store multimedia data, usually audio and video. It is compatible with a wide range of devices and operating systems, using a codec to compress file size, resulting in a file that is easy to manage and store. It is also a popular video format for streaming over the Internet, such as on YouTube. Many consider MP4 to be one of the best video formats available today.
MP4 files open in the operating system's default video player. Simply double-clicking the file opens it. There is no need for third-party software. On Windows, it opens in Windows Media Player. On Mac, it opens in QuickTime.
On some devices, particularly mobile, opening this file type can be problematic. MP4 is a container that contains various kinds of data, so when there is a problem opening the file, it usually means that data in the container (an audio or video codec) is not compatible with the device’s OS. To resolve this issue, try VLC media player.
Developed by: Moving Picture Experts Group (MPEG)
Standard: ISO/IEC 14496
Initial release: 1999
FreeConvert.com can convert your other files to MP4 format:
FreeConvert.com can convert your VOB files to these other formats:
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