Zitat Welcome to Codec Central containing the finest collection of audio codecs from around the world. Codec is short for compression and decompression, adding extra reading (decoding) and writing (encoding) abilities to dBpoweramp Music Converter.
There are two types of compression:
Lossy where audio quality is lost whilst encoding in order to create smaller files, Lossless no audio quality is lost (like zip compression).
Refer to Spoon's Audio Guide for details and help choosing the right audio codec to suit your needs.