How is the information stored? MP3 players are basically divided into 2 main groups: those who have a hard drive and those who have internal memory (Flash Memory). MP3 players with internal memory: they are lighter, and its storage capacity revolves around 8 GB. In some players there is the option to expand capacity through an external card. MP3 players with hard disk: are characterized by their great capacity for storage (10 GB thereafter). They are a little heavier and more sensitive due to its delicate internal mechanism. MP3 or MP4? MP4 players are those who displayed a video on your screen. Some allow the viewing of a short video while others allow you to display up to full-length movies and this will depend on the storage capacity of the player. These players are also known as PMP (Portable Media Player).
It is important to mention that while the word MP4 appears in his name, that does not mean that the Player supports this format. Be sure to check before buy. In general, the players support different formats, such as Divx, Xvid, ASF among others. In case that you want to watch movies on the player, it is recommended one with not so small display to a more comfortable experience. In MP4 players ability is very important since a video file is bigger than one of music. If you want to just listen to music, it is recommended players that support the basic formats (MP3, WMA, OGG, AAC) among others. The quality of the sound there are several factors that influence the quality of the sound, and generally do not depend on the player. Hearing aids: one of which most affects the quality of the sound. Not the best player will give us a good sound without good headphones. Usually each player comes with headphones, however these are not always of good quality, so it is recommended to buy a better quality for better sound.