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Magneto Optical Disk
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Modulating Hiss
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Magneto Optical Disk

(Redirected From MOD)

From Chace Audio

A magneto optical disk, or MOD, is a digital data storage medium. Like a hard drive, CD, DVD, and flash drive, it reads and writes digital data. MODs are removable media, separate from the drive mechanism, that are housed in a protective case.

In post-production, MODs primarily serve three different functions.

1) A data disc. In it’s most basic function, an MOD can store any type of computer file. Prior to the widespread adoption of DVD-R discs and internet delivery, these discs were considered a convenient and stable carrier to move audio files and editorial sessions from one facility to another.

2) A Dolby® SRD print master disc. When used in this application, an MOD is given a proprietary format that is intended solely for use as a Dolby SRD print master and the manufacture of an optical sound track negative. Dolby AC-3 data compression has been applied to the audio on a Dolby MOD and the files can only be accessed using Dolby's proprietary playback technology; for these reasons, a Dolby MOD is not an acceptable source for any other purpose.

3) An Akai dubber disc. When used in this application, an MOD is given a proprietary format that is intended solely for use with an Akai digital audio recorder. Audio recorded to an MOD using an Akai deck cannot be readily imported into a DAW (digital audio workstation) without a real-time transfer.