There's a bug in gstreamer which causes skips in muine (and probably all apps using playbin) after the first 3 seconds of any MP3s. See the URL for more details. I'm about to attach a patch as generated by tseng for ubuntu from gstreamer CVS which fixes the issue. The Ubunut bug is at https://bugzilla.ubuntu.com/show_bug.cgi?id=7359 With the patch applied, i no longer get any skips.
Created attachment 53186 [details, diff] Patch to fix skipping. Patch, created from gstreamer CVS by tseng.
ok patch added, use gstreamer-0.8.9-r3