Is it possible to move the destination where it save the databases when i add movies till another destination on my computer?

Im not trust this destination, its on my system partion now, and every time i get some kind of HDD crash, then i lose stuff in the internal HDDs.

And in some case, is it possible to move destination after i have made 100 DVDs inside the base ?

I have made backup, but im not trusting backup, also the backup is smaller then the folder, the whole backup set is 6.47 mb and only the image folder is 10.3 mb

Or you choose directly File -> Open Database -> New Database

In the following dialog you can choose to "copy the current database".

as far as your backup size goes, are you also including images in your backup? I believe you have a few options when backing up and can choose to not include the cover images, this would reduce the resulting size of your backup. The backup would still work, you would just need to refresh all images after restoring and you would loose any scans you have that are not in or are different than the online database.

-Agrare