заказное почтовое отправление(BrE) NAmE certified mail) noun uncountable a method of sending a letter or package in which the person sending it gets an official note to say it has been posted and the person receiving it must sign a form when it is delivered Х I'd like to send this by) recorded delivery. OALD Alexander Demidov)
заказное письмо с уведомлением(Recorded delivery is just standard first or second class that gets a signature on arrival. This has no guaranteed delivery time and its only standard compensation if it gets lost. Its not the most secure postal method. Registered is now known as special delivery. It is a guaranteed next day delivery service, that will get there before 1 the next day. Its the most secure service that travels separate from the ordinary mail, it gets scanned every time it changes hands and can be tracked the whole way. It has standard insurance of?500 but this can be increased. So basically it depends on how quickly you want it to get there and how important you consider the contents to be. Special delivery starts at?4.55 and recorded is just normal post price with an additional 75p for the signature. Alexander Demidov)
