[Simple]

While the "quotes" used before and after the path/name is to ensure it is being used as is and to over come some OS specific requirements.

However, when you name anything, try to avoid the using spaces, commas and special characters. You never know what problems you are going to face.

Luckily, you can change names easily in VirtualBox, but look at the .VDI file name, it wouldn't change. So, if you need to execute instructions that affect the name.vdi file, you need to check if it is the same name.

But if you want to change the name of the .VDI file, do that manually, then go the the .VBOX file and change it there using a text editor. (make a copy of every file before landing yourself in trouble).