Does re-saving mp3 files result in audio degradation?

Any Audio Gurus out there?
Does opening an mp3 audio file, editing it, then re-saving,
compress it more, resulting in additional audio degradation?
It is my understanding that opening jpeg files, editing them,
and then saving them results in additional image degradation.
Do mp3 files react the same way as jpeg files (each time you
save them they degrade more)?

Hey All,
Thanks for looking into this. The good news is I have answered my own question. The bad news is the answer is "HAD TO WAIT FOR 7.3!!!!!"
Yes QuickTime has solved this bug with the newest version. Also if anyone has created QuickTime files in h.264 (using QuickTime 7.2) and needed to re-save for any reason, you can now re-save these files again in 7.3 and the browser player's audio level will default to the highest setting as it should.
Again thank you to everyone who spent anytime searching an answer to this bug.

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I have recently posted the results of my MP3 decoder test, covering iTunes, Winamp, Windows Media Player and Foobar2000:
http://blog.szynalski.com/2011/03/16/itunes-10-2-1-fails-to-decode-mp3-files-pro perly/
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The distortion is mostly above 16 kHz.
I am posting this here in the hopes that someone from Apple will take notice.
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Does iTunes duplicate mp3 files I import, thus doubling space used on mac?

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May be a silly question, but here goes:
When I import mp3's onto my mac (from my old computer), i put them all into one folder..
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I've been trying to copy an .mp3 file that is exactly 79 mins and 58 secs long to CD (2 secs shy of 80 mins). Every time I try I receive an error stating the destination disc will not fit onto the 80 minute CD-R. Is there a reason for this and if so is there a way around it?

Ok... First I tried to use the .mp3 file to burn it within iTunes. Then it said it couldn't burn the play list which got me thinking iTunes was interpreting the entire play list. So I moved the individual .mp3 file to a new playlist and tried. Still iTunes wouldn't allow the .mp3 to be burned onto the audio CD and asked me if I wanted to span the discs. So I created another play list which contained the smaller version of the converted .mp3 -> .wav file. It worked flawlessly and in 2 mins the entire CD was complete.
So there must be something to do with the size of the file(s) as well as the amount of time of the files for Audio CDs.
You maybe right about it shortening the file during the conversion but I tried twice and came out with the same exact amount of time for the .wav files. This leads me to believe both the size of the file and the amount of time (at least within iTunes) must be the issue.
I also (previously) attempted to burn it using Roxio's Toast but had no success burning the large .mp3 file to an audio CD that way either.
iTunes did give me the option to split the file between multiple discs but this is not the result I was looking for...
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Message was edited by: musicspirit

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Burn voice mp3 play list to audio CD. convert bit rate or sample rate.

I have several audio files (voice), 30 in all, that I wish to play in a car CD player.
The car player cannot play mp3. Using iTunes I tried buring a play list of mp3 files to an Audio CD.
I get an alert from iTunes that I may require multiple CD's. Each mp3 file is around 90megs in size or about an hours worth of audio (voice).
The audio files are voice no music. But they are at 192 kbps bit rate and 44 khz sample rate.
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Now that memory serves me right. CDs have the MB size and the Minute size on them. example 700MB/80Minutes.
How we forget...
Thanks though

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Does re-saving mp3 files result in audio degradation?

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