If you start to play a DVD or VCD in the Player Library, the Player automatically switches to Now Playing mode. The Blu-ray Disc format is not supported in Windows Media Player. To play a Blu-ray Disc, you need to use a non-Microsoft program that supports Blu-ray playback and a device capable of reading Blu-ray Discs.
A standard book of stamps from the U.S. Postal Service contains 20 individual stamps. In January 2014, first-class postage rates increased to 49 cents for standard letters, making the cost of a book...
The first postage stamps of the UK, the Penny Black, were printed in sheets of 20 rows and 12 columns, but the location on the sheet was indicated by different letters in the bottom corners of each stamp. An A in the lower left corner indicated the first row, a B the second one, the C the third one, etc.