RadLight OptimFrog DirectShow decoder filter - a DirectShow decoder for .OFR streams. OptimFROG is a lossless audio compression program.

Its main goal is to reduce at maximum the size of audio files, while premitting bit identical restoration for all input. It is similar with the ZIP compression , but it is highly specialized to compress audio data.

The compression ratios which can obtained with OptimFROG are generally ranging from 25% (silent classical music) to 70% (loud rock music) of the original audio file size. This is less compared with around 13% obtained with high quality MP3 files (~176 kb), but you have the great advantage of archiving and listening at perfect copies of your original music.

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