Lossy
Lossless. Compression techniques do not remove detail from the image.
lossless
Pict files can use 2 different forms of compression. 1- RLE Compression (the default) is lossless. 2- JPEG compression (only on some systems/graphics programmes) is lossy.
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plane waves in lossy dielectrics
lossless
File compression uses software algorithms to reduce file size by reducing the bit-rate of a file. Lossy compression takes it a bit further and lowers the quality of thr file to make it even smaller. Lossy compression is commonly used for media files, but would not be appropriate for other types of files.
Lossy= You lose somedata Lossless= You dont
GIF is a lossless compression introduced by CompuServe in 1987 using Lempel-Ziv-Welch (LZW) lossless data compression.
The areas of compression are lossless compression and lossy compression. Lossless compression reduces the file size without sacrificing any data quality, while lossy compression reduces the file size by discarding some data, which may lead to a decrease in quality.
Audio Files are file extensions used to play, open or edit sound files (files you can hear such as music).There are three major groups of audio file formats:Uncompressed audio formats, such as WAV, AIFF, AU or raw header-less PCM;formats with lossless compression, such as FLAC, Monkey's Audio (filename extension APE), WavPack (filename extension WV), Shorten, TTA, ATRAC Advanced Lossless, Apple Lossless, MPEG-4 SLS, MPEG-4 ALS, MPEG-4 DST, Windows Media Audio Lossless (WMA Lossless).formats with lossy compression, such as MP3, Vorbis, Musepack, AAC, ATRAC and lossy Windows Media Audio (WMA).Some Common Audio File Extensions include but are not limited to:.WAV.AVI.Mp3.Mp4.WMAHope this helps :)Read more: http://wiki.answers.com/What_type_of_files_are_audio_files#ixzz1CNvmciUf