There are two types of movies with different definitions in iTunes Store, including the SD (p) and HD (p, p) versions. In most cases. High Definition (HD) vs. Standard Definition (SD). In a nutshell, the difference between high definition and standard definition images is the. What does HD audio mean and what advantages does it have over SD audio? In a technical sense, audio is deemed to be "high definition" if it offers either a sampling . most commonly high quality audio for music production is dealt with at. In this example, you can see HD and 4K being an option for you to choose Lets have a look at the differences between SD, HD, HQ and 4K!. SD or Standard Definition is the predecessor of HD or High Definition video and is characterized by the smaller x interlaced. This post is an overview of live streaming video resolution. In it, we talk about standard definition (p + i), high definition (p, i. High definition is a very high quality format of your video. If you uploaded an HD video, your video will playback in HD. If you uploaded an SD. The SD versions of our videos are optimized for the web, they are the same streaming files that you can view in our online library, and they're of. If you pasted a 5″ by 5″ square cardboard hole on the screen of a inch monitors/TVs, this is the difference you would see between an SD set and an HD set.