15.03.2003 22:14 UhrLee Larsonleelarson at mac.com: > On Saturday, March 15, 2003, at 12:10 PM, Marta Edie wrote: > >> Hello all, I am making my first steps on importing and burning CDs in >> my >> iTunes. I have a question : Having only infantile knowledge about >> this, do I >> understand that the MP3 format will condense the files as I am >> importing >> them, because my preferences indicate the MP3 format for import. ( It >> seems to be the default setting, I did not do anything, I just looked). > > Yes. It will take the audio files off the CD and compress them to MP3 > format. > >> Now >> when I burn a CD, it shows me in the preferences Audio CD, which I >> interpret as meaning it goes out unto the CD in what I would consider a >> regular unsqueezed format. > > Yes. It will take the MP3 files on your hard drive and convert them > back to the CDDA format on a regular audio CD. Be aware that this > conversion CDDA->MP3->CDDA will not give you a file on the CD with the > same sound quality as the original because the MP3 conversion lowers > the quality of the sound. If the MP3 was created with a high enough > bit-rate, say 192 or more, the degradation probably won't be noticable. > >> Why I am asking : if I want to give this CD to a >> friend, I assume it should be in a regular format, since I do not know >> whether the player this CD will be played on has this MP3 format. ( And >> incidentally ; ewhat does MP3 stand for?) A little clarificaton would >> be >> greatly appreciated. > > If you want to give it to a friend who may not listen to music on his > or her computer, a regular audio CD is certainly the safest bet. > > MP3 stands for MPEG-1 layer 3 audio encoding. It's a way of encoding > sound that throws out parts of the sound that supposedly most people > don't or can't hear. The typical MP3 encoding takes a sound file off a > CD (CDDA format = Compact Disk Digital Audio) which is designed to be > played at 1411.2 kilobits per second and gives back a file designed to > be played at 128 kilobits per second. The new file is about a tenth the > size of the original and sounds almost as good. > > MPEG stands for Motion Picture Experts Group. They have published > standards for converting audio and video to digital form. > Thanks so very much Lee." Hut ab" to all that knowledge.. So I was on the right track, I looked at my preferences again and for the import it says it is a MATSHITA CD-RW CW-8121, it is burning at maximum speed. For the import it says Better quality 160 kbps, It also has a best quality of 192 . Should I set it on this quality? I learned from your explanation 192 is better . but Is there a drawback somewhere else in setting it that high , and once set at 192, can I keep it there indefinitely? Marta
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