mp3 and mp4

As far as I know, the only music program that uses mp4's are itunes, so maybe the ipod will play them? just a guess.

ok, thanks

mp4 is very widely used, sometimes refered to as AAC (Advanced Audio Coding ) and is much prefered over mp3.

mp3's sound quality is much worse than the mp4 (listening to an mp3 recording you will immediately notice a loss in bass for example) , basically the mp4 compresses the data more efficiently not more as was suggested.

When using either mp3 or mp4(AAC) the sampling rate you use to compress the data is critical to the sound quality. Natuarlly the higher the sampling rate , the better the sound quality , but also the larger the file size. Some have suggested to have good sound on mp3's you need about 192Khz sampling, whereas the AAC can achieve that at around 128Khz thus perhaps reducing file sizes.

Thanks Michael, I didn't realize that.

Thank you Michael, do you know of any programs that can play mp4 files except ipods? I'd really like to hear what they sound like =)

Hi,
Athough consumers are playing with Mp3, where possible the manufactures have switched to Mp4 . Quicktime uses Mp4 and is a part of MPEG4 , a link to apples page follows MPEG4

In the article to save you reading you can see
Those companies are all heavyweights.


Lastly , in case you are in doubt and would like to find some end products. Gracenote is a company which while not well known provides the base for ipod , itunes , Napster , Creative, Yamaha...just about eveyone. Heres a link to thier software , you can have a look around. They nearly all have AAC (MP4) as an option.

powered by gracenote

So, quicktime is one of the well known products that supports MPEG4? I probably will just download that =) Thanks so much for the information