MP3 Gain/Replay Gain

Hello everyone,

I'm new and have been following this list for a while now - great info.
After reading everything that I can find on MP3Gain/ReplayGain, here's my 
question(s):
(I'm mainly interested in listening to randomized lists - i.e All Tracks)

-will Audiotron implement the gain adjustment?
-does it work well in the real world?
-I understand the concept of it being 'lossless', but it seems like some from 
the HA forum prefer not to have their 'bitstream data' changed?
-can the gain adjustment be undone?
-the recent LAME 3.95.1 adds a Replay Gain value to the "LAME tag/header". This 
is distinct from the ID3 tag, and not usable by any hardware/software as of yet?
-does Windows Media Player 9 "volume levelling" work the same way as MP3Gain, 
or is it simply peak normalization? Will Audiotron interpret any such changes 
made by WMP 9?

thanks in advance
roman

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