Opus MP3 Converter enables you to convert Opus to MP3 Audio. Opus is a totally open, royalty-free, highly versatile audio codec. Opus is unmatched for interactive speech and music transmission over the Internet but is also intended for storage and streaming applications. MP3 (MPEG-1 Audio Layer 3 or MPEG-2 Audio Layer 3) is a patented digital audio encoding format using a form of lossy data compression. Now you can enjoy the versatile audios on your MP3 Player wherever and whenever. Converting in batches or convert multiple files at one time.