This site covers encoding to the two most advanced MPEG-4 levels: MPEG-4 Advanced Simple Profile (ASP) and MPEG-4 Advanced Video Codec (AVC). DivX 4.0+, XviD and NeroDigital are all MPEG-4 ASP codecs, NeroDigital AVC and x264 are MPEG-4 AVC codecs.
Hampton Inn Philadelphia Center City. Adjacent to the Convention Center and within walking distance of the Historic District. A location adjacent to the Pennsylvania Convention Center makes this hotel an excellent location for the business traveler.
For the Rockefeller Center building, see 30 Rockefeller Center. Comcast Center is a skyscraper in Center City, Philadelphia, Pennsylvania, United States. The 58-story, 297-meter (974 ft) tower is the tallest building in Philadelphia and the state of Pennsylvania, as well as the twenty-first tallest building in the United States.