#1
What's the best form to encode music on iTunes? as in which sounds best and is least time consuming.
#2
Low conversion time and best quality?
Probably mp3.

FLAC or AAC for highest quality.

Wav, I guess, for lowest.

Or OGG, if you have that option. OGG is nice.


EDIT: Come of think of it. OGG and WAV (and 99% of other file types) don't play on iPods.
#3
VBR mp3 if file size is an issue, FLAC if not, and iTunes is crap and you should use one of the many better options out there.
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#5
then why are you talking about using it? even if you have an iPod there are tons of alternatives out there.
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Last.fm
#6
AAC (better quality) if you're planning to continue with iPods, or mp3 (more versatile) if you're still looking around for an alternative.

FLAC admittedly is the best quality, but I find that the filesize is really just too big to be practical.
#8
Songbird is the media player of the future.

Note the word future though, it has a way to go, but version 1.1 was released today, and it's sweet.