The company specializes in portable equipment for sound and video recording. The D90 was the first DSLR with video recording capabilities. Both used a tape transport design adapted from the video recording division. It is mostly used for capturing gameplay for live streaming or video recording purposes. Elgato makes a series of digital video recording devices called EyeTV. The camera is capable of HDR and 4K video recording. Analog recording was the most popular method of audio and video recording. The Nikon D90 was the first DSLR with video recording capabilities. In 2005, Nielsen began measuring the usage of digital video recording devices such as TiVos. Simon himself financed the US$750,000 cost of the staging and the video recording. The app united social media with individual video recording. Sound recording and video recording is often also possible. Prior to audio and video recording, no direct record of performing arts survives. DVD recordables are now also used for consumer audio and video recording. Heifetz conducted the orchestra, as the surviving video recording documents.