Buying that new DVD for that low price was a real steal.

The words ‘a real steal’ are an American figure of speech.  It means that the price is a good bargain.  A person could make a joke and say that for it to be bought at any lower price would almost be like stealing it.

以這麼低價買到那張DVD 實在太划算了。

美語中 a real steal 是一種比喻的說法，字面義與「簡直是偷來的」相近；在中文裡，還有「揀到了便宜」「物超所值」…等等，類似的表達。