Before some of your media syncs to your Zune, it may need to be converted. This usually happens with large, high resolution video and picture files.
Once a media file is converted, as long as it isn't changed, the converted file is saved in a conversion cache folder on your computer so that it doesn't have to be converted again.
You can't prevent a song, video, or picture from being converted as long as it's in your collection and set to sync with your Zune. However, you can control some aspects of the conversion process:
ACCESS THE FILE CONVERSION SETTINGS IN THE ZUNE SOFTWARE
| Action | How to |
| Change the location of the converted file cache on your computer | Click Change folder and choose a new folder. |
| Clear the converted file cache | Click Clear history. |
| Set the size of the conversion cache | In the text box next to Amount of space to use, type a number for the number of megabytes of hard disk space you want to reserve for the conversion cache. |
| Set the conversion process to work in the background | Select the Allow files to convert in the background check box. |
