Kenny-san,
Regarding to the Datasafe Co., Ltd. I discussed with Khun Kittiyaporn (sale person) about budget for storage our document.
She said, the original accounting document should storage in carton 5 years because the government (such as Revenue Dept.) accept the original accounting document only.
If the government request the accounting document, Yamamura should send the original accounting document only (cannot send scan file).
So, the budget for storage accounting document 10.00THB/carton/month (minimum 1,000.00 THB/month: Exclude VAT 7% )
and we can storage by scan into CD 3.00THB/paper (Exclude VAT 7%) but use for internal only. Datasafe will be guarantee the scan file in CD only 1 year.