MP3, AAC, Ogg Vorbis, and Opus are supported as output formats when transcoding. An option exists to copy files that are already in a lossy format, to avoid lossy-to-lossy conversions. The program can skip existing files to perform incremental sync, and also there is a "clean destination" feature that deletes files in the destination if they have been deleted in the source.
The program handles metadata in a robust manner, so that tags and cover art are properly transferred when converting between different formats. Multithreading is supported while transcoding to enable fast conversions.