"Virtual" and/or "prepaid" credit Cards

[cbsmokin]

There needs to be some clarity here about all of this.

A prepaid credit card is really just a debit card for people with bad credit. You send a bank money and they give you a percentage revolving line of credit based on the amount you have deposited.

A visa gift card you buy locally or on-line in denominations of your choosing. Some can be refilled, some can not. Many expire or charge a monthly fee if you don't use them. A transaction over your balance will be declined.

A virtual credit card is a secondary number issued for a traditional credit card (one time, one vendor, or specified time period) that prevents thieves from using your actual credit card information in the future.

Different banks have different fee schedules and some are not valid for transactions in foreign currency.

I would like to use visa gift cards but I am concerned about transaction fees or conversion fees if used for an international transaction. Can some one please tell me what their experience has been with this?