Hi Lumbered, I'm using ZaraRadio v1.44 from 30th of January, non-stop now. Have not had those kind of problems. And I'm using MP3 as well as OGG.
I have files that jitter, but that it because they did not encode well, staines on the CD, so that is easy to correct.
What could be the problem is the settings I guess. I advice AGC to be set, but also to have a compressor/limiter plugin like the free one from SqrSoft.
Provided that you have enough PC power. Running a StreamerP2P, Oddcast V3.1.8 and ZaraRadio 1.44 with Plugin, you will need at least a 1GHz and more then 256 Mb, under WinXP.
Another thing that may be the problem here is that when you use your PC for more than broadcasting then this might be the cause of the jitter.
This could be caused by opening your email client, and only scrolling trough your mails. This will cause noticeable distortion in your audio, sometimes it acts like a scratching system, othertimes it sounds like jitter.
My wildest guess is that you use your PC for more than just broadcasting. This means processing power has to be shared between apps. While streamerp2p does only need little, Oddcast does need more and Zara needs the most.
You could give Zara more processing power, but you will have to monitor the output to control the wanted effect.
WinAmp can set it's own processing priority and is known not to jitter. An app as VLC does very easy, allthough it is easier on the processor power.
When setting another priority for the application in question things become more stable. But, never set it to realtime, because you will not be able to do a lot more than broadcast.
You could also try getting the latest Oddcast version 3.1.8. I noticed that it does everything it is supposed to now and doing it very stable indeed.
Main point here: processing power shared amongst apps.
In XP goto the Taskmanager and look at the Processes Tab.
Look for ZaraRadio there and click on RMB. Then look at Priority.
TIP: Not logical, but setting it to LOW, might actually do the trick.
Hope I could be of any help.