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Article Id: WHEBN0009892189
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Title: OptimFROG  
Author: World Heritage Encyclopedia
Language: English
Subject: DTS-HD Master Audio, AllOfMP3, List of codecs, Adaptive Transform Acoustic Coding, Blu-code
Collection: Lossless Audio Codecs
Publisher: World Heritage Encyclopedia


Developer(s) Florin Ghido
Stable release 5.002 / August 18, 2015 (2015-08-18)
Preview release 4.910b *only Windows* / February 12, 2011 (2011-02-12)
Operating system Linux, Darwin, Microsoft Windows
Type Audio compression Encoder
Website .org.losslessaudiowww

OptimFROG is a proprietary lossless audio data compression codec developed by Florin Ghido. OptimFROG is optimized for very high compression ratios, even for the price of slower encoding and decoding.


  • OptimFROG DualStream 1
  • Technical details 2
    • Metadata 2.1
  • References 3
  • External links 4

OptimFROG DualStream

OptimFROG DualStream is a lossy codec, aimed to fill the gap between perceptual coding and lossless coding as OptimFROG DualStream has an option to produce a correction file. This file can be used, in combination with the main lossy-encoded file, for lossless decoding, but not, unlike Wavpack hybrid for instance, for playback.[1]

This correction feature is also offered by MPEG-4 SLS and DTS-HD Master Audio.

Technical details


Both OptimFROG file formats use APEv2 tags to store the metadata.


  1. ^ "How to use OptimFROG DualStream Correction files? - Hydrogenaudio Forums". Retrieved 2015-07-13. 

External links

  • Official website
  • OptimFROG at Hydrogenaudio Wiki.
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