An Mp4 player is amongst the latest gadgets available in the electronic market.

 This is in keeping with the upgraded version of Mp3 to Mp4.

Mp4 is fundamentally the global file extension for the official container format defined in the MPEG-4 standard (ISO 14496-14). This is streamable and supports all kinds of multimedia content and advanced content like 2D and 3D animated graphics, etc.Because MP4 players have large screens, generally 1.8" and above they are packed full of video and display functions. These include video playback, photo viewing, ebook (text file) viewing, graphical menus, games and many others, which you just dont get in the smaller mp3 players.

If you want this extra functionality and dont mind a slightly larger player then the MP4 player is for you. If you want something small that you can hang around your neck, then MP3 is probably more suitable. Cost is also another factor, due to the technology inside an MP4 player they are generally more expensive. If you can get one for just a few quid more than an MP3 player you have yourself a bargain!

Your digital audio / portable MP3 player can hold dozens, hundreds, or thousands of songs, but your car CD player can only play about a dozen songs, or if it has MP3-CD support, only a few dozen.

Why not hook up your digital audio player to your car stereo so you can listen to your tunes wherever you are?

There are two main ways to do this:1) If your car stereo has a digital line-in jack, merely buying a male-to-male digital-mini stereo connector should do the trick. If you're not sure which adapter to buy, talk to your local electronics store.2) If your car stereo doesn't have such an option (many lack this feature), don't fret!

You can purchase a device called a Wireless FM Transmitter that lets you play your songs over your car's radio! All you have to do is attach the Wireless FM Transmitter to your music player's headphone jack, set the device to use a radio station that normally has a weak signal, and then tune your radio to such a station. Voila! Your digital audio player's tunes are now coming out of your car stereo! Granted, option #2 results in song quality that may not match what you'd hear from a CD, but a good Wireless FM Transmitter can provide song quality to at least match that of stereo FM radio stations.

Before purchasing a digital audio / portable MP3 player, find out if the player also doubles as an external hard drive.Why is this important?

If the digital audio player requires special software to copy music to the player, you may be locked into that piece of software forever. Thus, you won't be able to take advantage of the capabilities found in other software to help sort your digital media. If your digital audio player doubles as a hard drive, copying files to the player is as simple as dragging and dropping the files from the desktop.

Another benefit if your digital audio player doubles as a hard drive - you can use it to store other types of files, such as photographs, documents, small games, or more. Instead of using floppy disks, ZIP disks, CDs, or other removable media to transfer files between computers or archive information, you can just use your digital audio player, saving you time and money with this added convenience.

Currently, there are two main types of digital audio / portable MP3 players, those that are based on some sort of flash memory, and those based on miniature hard drives.

Currently, most flash-based drives are smaller than their hard drive-based counterparts, and they are more expensive at the higher-end of music storage.Although hard drive-based players that support gigabytes of music are cheaper than flash-based drives (you may not even be able to get flash-based players that store the same amount of songs as hard drive-based players), one problem with hard drive-based players is that they are more prone to skipping.While many newer hard drive-based players support anti-skip technology (and if you buy such a device, you should get this feature), realize that hard drives contain mechanical parts. If you keep such a player in your pocket while you walk or jog, the internal hard drive may get jolted, causing read errors and breaks in your music.

Flash memory-based players contain fewer mechanical parts and are usually much less prone to skipping or shock-based damage.