In 1991 the Fraunhofer Society team represented a new format for coding audio files. Since then this format has been becoming better and better. In 1994 this format was introduced to the public with the release of software MP3 encoder "l3enc". And a hardware decoder was introduced soon after in 1995. At that time even computer hard drives were pretty small and with the compression mp3 format gave many people the opportunity to enjoy music on their computers so this format became popular very quickly. And today its popularity is steel growing everyday. The number of companies producing portable hardware mp3 players is huge. There are all sorts of models possible to suit anyone's needs. You can choose everything - size, color, form. With so huge popularity of portable mp3 devices the number of different MP3 accessories is also getting greater - different covers, belts and, of course, mp3 cases. Nowadays the sector of mp3 cases is probably the largest. Just look for e-bay offers and you will easily understand how many models of mp3 cases are available on the market. It goes without saying the main function of all mp3 cases is to protect portable device from possible damage. To ensure this these mp3 cases are made from hard and durable materials - there are even special mp3 cases made from steel. Inner cover is usually nice and soft. But of course these mp3 cases are not only a protection - they are also referred to as fashionable accessories. With the variety of presently available cases you can choose the one that suits you best. Choosing special models you can easily personalize your mp3 player. There are even special companies which offer custom made mp3 cases. So you get your own case and are sure that no one else in the world has similar mp3 case. There are also special bags for mp3 player. But they are made not only for carrying the device. In most cases these bags are mp3 accessories cases and contain different accessories for your mp3 player. The most usual option among these bags is a bag that has many pockets for compact disks, batteries and other small stuff. Ear phones are also included - and some models have even special speakers built in them. With such bag you will be able to enjoy music from your player with your friends anywhere. Among all these products you will also find so-called mp3 accessories kits. These kits have everything that is needed to turn your computer or hardware player into a music-box. At the same time you can interconnect different audio devices with them. With the development of technologies mp3 players have turned into multifunctional devices - they have fm radios, watches, flash lights and much more. And now they are able to play other audio formats so the only thing you need to do is to download your favorite music from your computer into your player - there is no need to convert different files into mp3. Mp3 devices themselves are changing today. For example you can find such a thing as mp3 player that is built into clothes. That is a wonderful thing for people who go in for sports and lead active life style. There is no need to think where to place your device when you are about to run in the park - you only need to wear you jacket.