There are set of file formats that Asset Bank doesn't attempt to compress when they are added to zip files for download.

This is because the file formats themselves are heavily compressed media formats and the amount of compression achieved when attempting to compress them into a zip file is greatly outweighed by the improvement in speed when the asset is just stored in the zip file.

By default the following file types are stored in zip files rather than compressed...

• jpg
• jpeg
• jpe
• gif
• png
• tif
• tiff
• zip
• mp3
• aac
• wma
• m4a
• mpg
• mpeg
• mov
• wmv
• mp4
• m4v

...all other files are compressed.

If you need further help with this process or have any further questions about zip compression in Asset Bank please contact Asset Bank Support.