Hi Christopher,
Sandeep is correct, there are other options for backing up when you have a large Imported Items folder. One good method is to use a 3rd party software like Carbonite, Mozy, etc.
These backup options are fine for backing up Windows folders and files.
The Imported Items folder is a Windows folder and is not an actual part of the database files.
Now one thing you have to remember is that you cannot use these 3rd party backup options to back up the Amazing Charts database files. They will backup the database files but the backups would not be any good to restore from.
To copy the database files for backup, the Amazing Charts SQL service must be stopped while the files are copied.
That is what the AC backup utility actually does. It stops the service, copies the database files then restarts the service.
So an option would be to use the AC backup for the database files and send them offsite. Also use Carbonite or Mozy to backup your Imported Items folder, plus whatever other Windows folders and files you may want to backup offsite.
Here is a link to a great video about backup options with Amazing Charts.
This was at the 2011 ACUC and was presented by our Network Administrator Mark.
http://amazingcharts.com/support/i-want-to-help-myself/video-tutorials/?tx_acvideos_videogallery[video]=86&tx_acvideos_videogallery[category]=5&tx_acvideos_videogallery[controller]=VideoGallery&cHash=bdf7c1ba9fc94c8403f832bf8c962bef
I hope this helps you out.
Thank you,
Anthony@AC