QUOTE(pizzetta72 @ Apr 18 2008, 01:52)

You mean that if I split a live album in several mp3, when I need join in a single file, I Need always re-encoding all the file (if I need the crossfading)???
If you're creating a single-file mp3 image from individual mp3 files encoded separately, then yes, absolutely.
QUOTE(pizzetta72 @ Apr 18 2008, 01:52)

At this point is always better to rip alive album directly in a single file and then split the tracks. In this way the splitting doesn't re-econde the file, and I'll have both single and split files...Correct?
If you split a single-file mp3 image with a program like musiCutter or mp3DirectCut you don't have to re-encode. You can even put them back together to recreate the single-file mp3 image if you like as well since the process is lossless (for the audio data, at least).
QUOTE(pizzetta72 @ Apr 18 2008, 01:52)

Also if I use EAC to rip with accurate settings and then burn with Nero using crossfading option set to -0,5 sec between tracks? In this way the re-encoding should be minimal or not?
Re-encoding is not required if you're just burning mp3s to CDDA.
Considering they're encoded using Lame, I have no idea why you would want to crossfade. Gapless playback and decoding of Lame encoded tracks has been possible for quite some time now, though I don't know whether Nero is capable.