WebM VP9 supports both lossy and lossless compression. Compression codecs are classified primarily into lossy codecs and lossless codecs. Wavelet compression can be either lossless or lossy. WebP is an image format employing both lossy and lossless compression. Often lossy compression is able to achieve smaller file sizes than lossless compression. JPEG 2000 is a compression standard enabling both lossless and lossy storage. It is suitable for both lossless and lossy compression. Support for HEVC's lossy and lossless data compression is included. This allows the use of lossy and lossless codecs together. Both lossless and lossy compression are recently being considered in the literature. A number of lossless audio compression formats exist. ZIP is an archive file format that supports lossless data compression. Albums are currently available in either Apple Lossless or FLAC format. Lossless compression formats include the common FLAC, WavPack, Monkey's Audio, ALAC (Apple Lossless). Arithmetic coding is a form of entropy encoding used in lossless data compression.