Comment 7 for bug 129472

I mean crossfade. Go to Preferences in the Edit menu and then go to the Playback tab. Tick the "Enable crossfading effects" checkbox, and move the slider to 0 seconds. Make sure crossfade between songs in the same album is unchecked. (0 second crossfade=gapless playback. That's what I use it for.) Restart rhythmbox and then try and seek in a 96kbit mp3. (Once you've finished this, you'll probably want to disable crossfade again, as it seems to me that there are quite a lot of other problems with it, eg inability ot play m4a/aac).