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changing parameters without being able to tell current customers what you changed is unacceptable! reducing the the acceptable parameters within the .mp4 is not improving usablility!
it wouldn't be any different than having to re-encode all your .mp3's because the zune team did a firmware downdate....obviously you aren't maintaining 2TBs of vids between your zunes and computers. just because it doesn't affect you doesn't mean it isn't an issue.
way to drop the ball zune tech support! completely incapabable of even comprehending the issue at the level 2 supervisor level.......answer is.....cabac level had a minor change which requires it to be completely off now.
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I agree that the Zune software should tell you when it's transcoding and give you options to stop it or run it at a specific time. And no, I only have about 30 GB of video.
However, the Zune software shouldn't be killing your performance while transcoding. I've experimented with it on many hardware configurations (including other peoples' with more video than you) and I've found it to be even faster and lighter than version 3. Even on low-end netbooks, version 4 is superior to 3 (with the graphic setting turned off, of course). But it seems Microsoft has dropped support for certain hardware configurations. That's what I'm seeing anyway. Most people who are having issues with it have computers that are more than four - five years old. And anyone with a Pentium III CPU can expect it not to work. (I tried it on my old 2000 machine, and thought it was a bug in Zune at first. I even posted about it on this site.) So if your computer is older than five years, try getting a new one!
You don't seem to appreciate the complexity of video codecs. If Zune is transcoding your videos, it's not because of a firmware downgrade. If you find a compression algorithm that is simpler and produces the same video quality, it pays in battery life to use it. Your device will have less to process, and you won't lose quality.
User devices:
Zune HD 32GB