as for ogg I think it will be in next OS version http://www.gossamer-threads.com/list...pers/1892#1892 but if you have spare time, go for it

see also (old and maybe outdated) threads about tremor and C55 http://lists.xiph.org/pipermail/trem...er/thread.html

also if you have tremor dsp task running you should integrate in into gstreamer somehow, there are no sources for gstreamer mp3 dsp plugins running in N770