OptimFROG

File Format
Name	OptimFROG
Ontology	Electronic File Formats Audio and Music OptimFROG
Extension(s)	.ofr, .ofs

Description

OptimFROG is a proprietary audio file format developed by Florin Ghido which offers losslessa audio compression. It produces files with the extension .ofr. .ofs (OptimFROG Small) files are produced by the OptimFROG DualStream branch, which offers high-quality lossy compression.

Information

• OptimFROG - DualStream
• OptimFROG Interface Documentation
• Old site, also includes its predecessor, FROG

Software

• Konvertor
• OptimFROG - Downloads (includes encoders for multiple platforms and input plugins for a number of popular music players)
• RadLight directshow filter

Other

• mutagen - a python module handling audio metadata, which includes OptimFROG support.

Sample files

• dexvert samples — audio/optimFROG

Links

• Performance comparison of lossless audio compressors