Re-encode at lower bit rate?

I want to reduce the size of some of my files in order to fit more on my ipod. Some files were previously copied at 320kps or 256kps etc. I had the facility on a previous media player to re-encode. Does iTunes do this? I haven't been able to find the option.

kiho - You got it! As you probably noticed, "Convert" in iTunes actually means "create a new copy." After conversion, you will have both versions in your library, so if you don't want the 320s any more, delete them. If you have playlists with the 320 versions in them, you can manually replace the songs with their new lower bitrate counterpart - that does not happen automatically. -Ed.

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