The difference between a Vienna Frank and a hot dog lies in their size, shape and casing. Vienna Franks are typically longer and skinnier, measuring about 6 inches in length. On the other hand, hot dogs, also known as franks or frankfurters, come in various sizes and shapes but are generally shorter and thicker. The taste and texture of both Vienna Franks and hot dogs are similar, making them a delicious choice for any hot dog enthusiast. 1lb pkg, with a natural sheep casing. 10 lb Cases Standard Pack 1, or 1lb packages, standard pack 12. Our hot dogs are sure to satisfy your cravings.