Any good programs for mp3 compression?

[Grand Duke Vytautas]

Are there any? Cuz if I use standard rar, zip it's almost the same size. I want to be able to compress at least 2/3rds of initial size
Any help is appreciated and will deserve a rep

[spartan_phalanx]

There's a number of them on google but I haven't used them so can't help beyond that.

[Steistas]

I would sugges WinUha http://www.klaimsoft.com/winuha/ or KGB http://kgbarchiver.net/ . And have a look at http://www.maximumcompression.com/index.html some comparisons there. Tell us what you chosen later good luck compressing