Regarding Job Completion Information
If you've played with Media Mill much, you may have noticed that the percentage-complete indicator for your job doesn't update that frequently. The reason for that is that we only cache that information once every 60 seconds (give or take). So, the percentage you see could be up to a minute out of date. This is because it actually takes quite a long time to get status information out of the compression cluster. When we initially deployed Media Mill, all that information was queried on every page load, and it took *forever*. 60 seconds seems like a reasonable tradeoff. Doing it more frequently would just deprive the actual compression process of cycles, making your job take that much longer.