AOB File

What are AOB files and how to open them

Are you having problems opening an AOB file or are you simply curious about its contents? We're here to explain the properties of these files and provide you with software that can open or handle your AOB files.

What is an AOB file?

An .AOB file is a DVD-Audio Audio Object file.

The DVD-Audio Audio Object File format (.AOB) holds high-resolution audio data on DVD-Audio discs. It is used exclusively for audio content on the AUDIO_TS folder of a DVD-Audio disc, where it stores full fidelity multichannel audio tracks usually in uncompressed Linear PCM (LPCM) or losslessly compressed (MLP) form.

Files of this type are created during the manufacturing of DVD-Audio discs in compliance with the DVD-Audio standard. Playback devices and software that fully support DVD-Audio use .AOB files to render high bitrate audio; users might extract, convert, or rip these files to more common formats so they can be played on devices that lack native DVD-Audio support.

Technically, a .AOB file is an MPEG Program Stream as per ISO-13818-1, where each logical DVD sector (2048 bytes) forms a pack containing a Private Stream 1 (PES packet type 0xBD) with LPCM content or an MLP stream. These packs carry system clock references (SCR) and presentation timestamps (PTS); the LPCM data frames start at a fixed offset within PES packets following the MPEG system and private stream headers.

How to open AOB files

We have identified one AOB opener that is compatible with this specific type of AOB file.

Programs that open DVD-Audio Audio Object files

Last updated: August 5, 2026

Various apps that use files with this extension

These apps are known to open certain types of AOB files. Remember, different programs may use AOB files for different purposes, so you may need to try out a few of them to be able to open your specific file.

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