what kind of mp3 software use?

introduce one for me la~~~~~~~

Ripper - EAC
Player - Winamp 2.81
Encoder - Lame 3.90.2
Library - DJ200

Ripper - Sound Forge + Thorens TD-160 MkI turntable (also EAC on occasion)
Encoder - Lame v3.92 + Razorlame v1.1.5, also LPAC (for lossless)
Player - WinAMP v2.76 (with a few updated plugins)

EAC

LameDropXPD

FOOOBAR20000 with crossfade and some preamp

Ripper: EAC
Encoder: LAME 3.90.2 ("official" Hydrogen Audo recommended version) [Note: use command line to get optimal performance from the encoder: --alt-preset standard or --alt-preset extreme or --alt-preset insane have increasing levels of sound quality and bit rates]
Gain adjustment: MP3Gain
Player/tag editor: Foobar2000 v0.43
Jukebox: Sonic Foundry Siren 2.0

Check out MP3 forum on this site - lots of good recommendations/links.

Ripper - EAC
Encoder - Lame 3.90.2
Player - Winamp 2.81

Grabber: EAC
Encoder: LAME 3.90.2
LAME Frontends: ALL2LAME, RazorLame
Player: Foobar2000
Tagger: Tag w/Tag Frontend

player: winamp 2.81 with fhg codec from winamp 2.22
audio grabber: EAC 0.9 beta 3
mp3 encoder: lame 3.90.2 (frontend: razorlame 1.15)
tag: tagscanner 4.7

Ripper: EAC
Encoder: LAME 3.90.2
Player: Foobar2000
Tagger: Musicmatch Jukebox 7.5
Library: Mpeg Audio Collection
Gain: Mp3Gain
Edit & Repair: mp3Trim Pro 1.77a
Check mp3 Files: Encspot
Ocasionally (just for wav edit before to encode to mp3): Sound Forge 6.0d

Ripper: EAC
Encoder: 3.90.2
Player: Foobar2000 (as of yesterday)
ReplayGain: MP3Gain

admittedly, I usually use .ogg though.

Ripper : dBpowerAMP
Player : J.River MediaJukebox 8
Tagger : Windows Media Player 9
Encoder : LAME 3.92

Ripper: Exact Audio Copy
Encoder: Lame 3.92
Other: EncSpot 2.0 Basic
Other conversions: dbPowerAmp
Player: Winamp 2.81

Rip: EAC
Encode: LAME 3.90.2
Tag: MP3 Tag Studio
Gain: MP3 Gain
Play: Media Jukebox 8

Ripper : EAC
Encoder : LAME 3.90.2
Player : Winamp 2.81
Plugins : Album List, NowPlaying
Organize : Windows Explorer w/ ALT+FWF

Media player & Tagger: QCD with Elephant, Jsearch and Resumer plug-ins
Gain: mp3Gain
Ripper & endoder: EAC with Lame

Ripper: dBpowerAMP Music Converter
Jukebox: dBpowerAMP Audio Player
Tag editor: dBpowerAMP Music Converter
Format Converter: dBpowerAMP Music Converter
CD Writer: dBpowerAMP CD Writer
Management for my mpio DMG/DMK/Rio 600: Sveta Portable Audio
Audio Editor: SoundEngine (http://soundengine.lunanet.gr.jp/english/)

what else could you expect?

Player, Encoder, Tagger: Musicmatch Jukebox 7.5
Ripper: EAC
Editor, Encoder: Cool Edit Pro 2
Gain: MP3Gain
Burner: Nero

thx ....buddy~~~

but..which mp3 player has best sound?

Mp3 player with the best sound? Hmmmmm let's see ....that would be the player with the best decoding IMHO.

I'd personally recommend Winamp, some fancy the Foobar2000 player.

Ripper, Player, Encoder, Tagger, Burner --> MUSICMATCH Jukebox 7.5

Ripper: EAC
Encoder: LAME 3.90.2 (FLAC too)
Player: Winamp2.81 / Foobar
Tagger: Mp3 Tag studio
Burner: EAC / Nero

Ripper: cdparanoia
Encoder: lame 3.93.1 / oggenc 1.0 / flac 1.1.0
Frontend for Ripper and Encoder: abcde
Player: XMMS 1.2.7

Ripper: EAC
Encoder: Lame 3.90.2 / Oggenc / Flac
Frontends: Razorlame / OggdropXPd
Tagger: Tag 2.0.36
Burning: EAC (cuesheet) / Nero (single files)
Player: Winamp 2.80 with latest plugins or Foobar2000
Organizer: Helium² (sometimes)

Ripper: EAC
Encoder: FLAC & OGGEnc
Frontends: FLACDrop & OGGDropXPd
Player: Foobar2000
Burning: Burnatonce

Ripper : EAC
Player : Foobar 2000 (using internal replaygain)
Encoder : lame 3.90.2 for MP3 and mppenc 1.14 for MPC

Ripper: EAC
Player: Winamp 2.81/FB2K
Encoder (MP3): LAME 3.90.2/3.92 (@ --alt-preset standard)
Encoder (Vorbis): John33's OggEnc2.1/OggDropXPd 1.6.5 (@ -q 6)
Encoder (MPC): mppenc 1.14 (@ --standard)
Encoder (Lossless): FLAC 1.1.0/FLAC Frontend 1.7
Tagger: Tag Frontend 1.5.1
Burner: EAC, Easy CD Creator Platinum 5, Nero 5

Ripper: EAC w/ Accurate Stream & Cache Selected (No ECC for my drive )
Player: Winamp 2.81 w/ FLAC v1.04, APE, Vorbis v1.2.9 & MPC v0.98 Plugins
Encoder (MP3): LAME 3.90.2 (--alt-preset standard)
Encoder (Vorbis): OggDropXPd 1.6 (-q 5/6)
Encoder (MPC): mppenc 1.14 (-q 5)
Encoder (Lossless): APE (Latest version, use it to temp store files)
Burner: Nero 5.5.10.0

Edit - Thanks Anthrax - I used your format for my info - you saved me some time

Ripper: EAC
Encoder: Lame 3.90.2 for mp3 - Mppenc 1.14 for mpc
Frontend:Multi frontend (by Speek )
Player: Foobar2000
Tagger: Tag (by Case) with Tag Frontend (by Speek)
Gain: Mp3Gain for mp3 - Replaygain for mpc
Burner: Feurio