“VTR” stands for “Video Tape Recorder.” The most common type of VTR is the consumer “VCR” (Video Cassette Recorder), which uses tape that is enclosed in a plastic shell. Professional VTRs typically use different tape formats, and offer extended features such as editing, time code sync, and remote control capability.
Examples of pro formats include U-matic and Betacam. Consumer formats include VHS, S-VHS, and Hi-8. Digital formats include D1, D2, D3, and DVCAM. High-definition digital formats include HDCAM and HDV.