information is easily found on google
i can give you the bitrates of ATRAC, but not a sound comparison
ATRAC (SP) =292Kbps
ATRAC (LP1) =132Kbps
ATRAC (LP2) =66Kbps
i persoanlly use ATRAC LP1 i get 2-3 CD's on each 74min MD about 30-35 songs depending on their length
i take 4 MD's with me in my home made/custom made belt clip (can't see it under a shirt or feel it walking etc..
)
and get about 60 hours battery life from a single NiMh 1800 rechargable AA battery
so a music collection of 120 songs is with me at any one time, i keep all my music perminently on MD and just grab whatever music i feel like i want at the begining of the day.
i don't use ATRAC LP2 because my manual says it can introduce artifacts. (but the most recent atrac compressions might be better than the one i have, such as atrac type-r and stuff)
anyway might answer some questions <A HREF="http
/www.minidisc.org/mdlpfaq.html" target="_new">http
/www.minidisc.org/mdlpfaq.html</A>
Alltaken
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/www.mud-puddle.co.nz" target="_new">http
/www.mud-puddle.co.nz</A> its where its all going on, oh and its also all going on HERE <A HREF="http
/doug.mud-puddle.co.nz/gallery/" target="_new">http
/doug.mud-puddle.co.nz/gallery/</A>