The problem happened because ideal dvd copy don't support such destination directly, however, you can map your net drive as a local one first, then ideal dvd copy is able to read the destination folder.
Detail steps:
1)Map your net drive as an local drive;
Open a folder on your local computer, click "Tools"->"Map Network Drive..." like below
On the pop up window, fill in the share folder from other computers you want to save your dvd;
Check the option "Reconnect at logon";
Click "Finished" button to save. Now on your computer, a new drive appears.
2) Open Ideal dvd Copy, click"Destination" textbox and choose "To hard disk..." from the dropdown list , on the pop up window, choose the new drive you just mapped as the destination to copy.
Just click "start" button to copy, that is all done.
